Las Vegas Sun

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

Dewey Decimal System Day today marks the birthday of librarian Melvil Dewey and celebrates the library classification system that reshaped how readers find nonfiction on the shelves. For generations, ...
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.