https://www.loc.gov/catdir/cpso/genreformgeneral.html

https://www.loc.gov/aba/publications/FreeLCGFT/freelcgft.html

This page provides print-ready PDF files for the the Library of Congress Genre/Form Terms for Library and Archival Materials (LCGFT), as well as the Genre/Form Terms Manual, which provides guidelines and instructions for making proposals and for applying genre/form terms. LCGFT is available as part of LC's web-based subscription product, Classification Web Plus .

https://id.loc.gov/<br /> Library of Congress Linked Data Service