insider.si.edu

Classification. Class M. Music and books on music / Subject Cataloging Division, Processing Department, Library of Congress

"A revision of the second edition, originally published in 1917, and includes additions and changes made by the Library of Congress through June 1977." Includes index. Kept up to date by the ...
insider.si.edu

Classification. Class Z: Bibliography and library science

First ed. published in 1902 by the Classification Division of the Library of Congress. "Additions and changes to October 1964": 61 p. at end.
Las Vegas Sun

Dewey Decimal System still most common, but some libraries using updated classification

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. Dewey ...