How to cite The Reseller Index

What we originate and what we report

Part of what we publish is our own work. The rest is a dated copy of numbers that other organizations set.

We aren't affiliated with any of these organizations, and our copies of their numbers aren't official. If our copy and the official page ever disagree, the official page is right; please tell us.

Citation formats

Use the page or file title, its URL and the date it was verified: every page and file shows that date, and numbers change, so it belongs with any figure you quote. The examples cite our USPS Media Mail price history page.

One-line credit (articles, posts and newsletters)

Source: The Reseller Index (resellerindex.com), <page title>, verified <date>

Source: The Reseller Index (resellerindex.com), USPS Media Mail price history, verified Oct 19, 2026

For a fee or price that someone else sets, name the official source first:

Source: USPS Notice 123 (pe.usps.com), via The Reseller Index (resellerindex.com), verified Oct 19, 2026

Plain text

The Reseller Index. "<page title>." resellerindex.com. Verified <date>. <URL>

The Reseller Index. "USPS Media Mail price history." resellerindex.com. Verified Oct 19, 2026. https://resellerindex.com/history/media-mail/

Author-date (APA-like)

The Reseller Index. (2026, October 19). USPS Media Mail price history. https://resellerindex.com/history/media-mail/

The date in parentheses is the day we verified the numbers on the page. These pages change as fees and prices change, so if your style guide asks for a retrieval date, add the day you read the page, and follow your style guide wherever it differs from this example.

BibTeX

@misc{resellerindex_history_media_mail,
  author = {{The Reseller Index}},
  title  = {USPS Media Mail price history},
  year   = {2026},
  url    = {https://resellerindex.com/history/media-mail/},
  note   = {Verified 2026-10-19. CC BY 4.0}
}

BibTeX's standard styles print only the author, title, howpublished, month, year and note of a @misc entry and ignore any other field, such as url, or version in the dataset example below (BibTeXing, the BibTeX manual, section 3.1). With one of those styles, copy the URL into howpublished or note.

Cite a tracker entry

Every entry has its own permanent page at /changes/<platform>/<id>/. The id starts with the date the change takes effect (or was announced), then the platform and a short name. Link the entry's page rather than the tracker's front page, and keep the date we verified it (and, when you quote a change, the date it takes effect). Each entry's page ends with a ready-made citation; for the newest entry (effective Nov 9, 2026), it reads:

The Reseller Index change tracker, "Car loan interest deduction: final rules take effect Nov 9, 2026," https://resellerindex.com/changes/irs/2026-11-09-irs-car-loan-interest-final-regulations/, verified Oct 23, 2026.

As a one-line credit, and in BibTeX:

Source: The Reseller Index (resellerindex.com), Car loan interest deduction: final rules take effect Nov 9, 2026, verified Oct 23, 2026

@misc{resellerindex_2026_11_09_irs_car_loan_interest_final_regulations,
  author = {{The Reseller Index}},
  title  = {Car loan interest deduction: final rules take effect Nov 9, 2026},
  year   = {2026},
  url    = {https://resellerindex.com/changes/irs/2026-11-09-irs-car-loan-interest-final-regulations/},
  note   = {Change tracker entry 2026-11-09-irs-car-loan-interest-final-regulations, effective 2026-11-09, verified 2026-10-23. CC BY 4.0}
}

The same entries, each with its URL and verified date, are in /changes.json and /data/changes.csv.

Cite a dataset

Cite the file's URL and the date its numbers were verified: the verified_on field at the top of each JSON file (in /changes.json, on each entry) and in every CSV row. For an exact snapshot, add the file's SHA-256 hash from /data/datapackage.json; the catalog version only tells you which day's data you used.

In the catalog version, the first number (2) goes up when a file is renamed or removed, or a CSV's columns change (added, removed, re-ordered or a new type); the middle number is the newest verified date in the catalog, written YYYYMMDD. Files changed on the same day share a version, so the hash is what pins the exact copy.

The Reseller Index. (2026). USPS Media Mail retail prices by weight, 1-70 lb, since 2002 [Data set, CSV; catalog version 2.20261023.0]. Verified Oct 19, 2026. https://resellerindex.com/data/history/media-mail.csv

@misc{resellerindex_history_media_mail_data,
  author  = {{The Reseller Index}},
  title   = {USPS Media Mail retail prices by weight, 1-70 lb, since 2002},
  year    = {2026},
  version = {2.20261023.0},
  url     = {https://resellerindex.com/data/history/media-mail.csv},
  note    = {Data set (CSV), verified 2026-10-19. CC BY 4.0}
}

For software and catalogs: /data/datapackage.json lists every file as a Frictionless Data Package, with its sources, size, SHA-256 hash and a Table Schema for each CSV; /openapi.json describes the same files in OpenAPI 3.1; /llms.txt is a short Markdown guide to the site, and /llms-full.txt has the fee tables, the Reseller Cost Index, the USPS prices, the tracker and the price histories in one Markdown file. Each JSON data file listed in the catalog, and the catalog itself, also carries a citation field. Fields and spreadsheet formulas are on the data feeds page.

Corrections and questions

If something we publish is wrong, tell us on the corrections page, with a link to the official source if you have one. We fix the page and log the fix there with the date, so a citation to an earlier version can be checked against what changed. Questions about citing or reusing our data go through the same form. How we research and check the numbers: about and methods and disclosures.