Hickey, Doralyn J. (1969). "Reviewed work: The Use of the Library of Congress Classification: Proceedings of the Institute on the Use of the Library of Congress Classification Sponsored by the American Library Association, Resources and Technical Services Division, Cataloging and Classification Section, New York City, July 7-9, 1966, Richard H. Schimmelpfeng, C. Donald Cook". The Library Quarterly: Information, Community, Policy. 39 (3): 294–296. doi:10.1086/619784. JSTOR4306016.
Howard, Sara A.; Knowlton, Steven A. (2018). "Browsing through Bias: The Library of Congress Classification and Subject Headings for African American Studies and LGBTQIA Studies". Library Trends. 67 (1): 74–88. doi:10.1353/lib.2018.0026. hdl:2142/101937. S2CID69496735– via Muse.
Howard, Sara A.; Knowlton, Steven A. (2018). "Browsing through Bias: The Library of Congress Classification and Subject Headings for African American Studies and LGBTQIA Studies". Library Trends. 67 (1): 74–88. doi:10.1353/lib.2018.0026. hdl:2142/101937. S2CID69496735– via Muse.
Hickey, Doralyn J. (1969). "Reviewed work: The Use of the Library of Congress Classification: Proceedings of the Institute on the Use of the Library of Congress Classification Sponsored by the American Library Association, Resources and Technical Services Division, Cataloging and Classification Section, New York City, July 7-9, 1966, Richard H. Schimmelpfeng, C. Donald Cook". The Library Quarterly: Information, Community, Policy. 39 (3): 294–296. doi:10.1086/619784. JSTOR4306016.
LCCN also covers authors, which LCC does not. For authors (people), the letter 'n' accompanies the number, and they too define URLs in a parallel catalog, such as "n83160096" and "http://lccn.loc.gov/n83160096 ". (So LCCN may be called alphanumeric.)
id.loc.gov
LCSH too is developed by the Library and assigns alphanumeric IDs. A closer look at this example shows refinements defined in 2004, 2007, and 2009. LCSH: Boarding schools.
Howard, Sara A.; Knowlton, Steven A. (2018). "Browsing through Bias: The Library of Congress Classification and Subject Headings for African American Studies and LGBTQIA Studies". Library Trends. 67 (1): 74–88. doi:10.1353/lib.2018.0026. hdl:2142/101937. S2CID69496735– via Muse.
Chan, Lois Mai (1999). A guide to the Library of Congress classification. Lois Mai Chan (5thed.). Englewood, Colo.: Libraries Unlimited. ISBN1-56308-499-6. OCLC41211262.