Einführung in das Wesen der Dezimalklassifikation

List of subject headings for small libraries

Minnie Earl Sears

An introduction to library classification, theoretical, historical and practical, with readings, exercises and examination papers

W. C. Berwick Sayers

A manual of classification for librarians and bibliographers

W. C. Berwick Sayers

Universal decimal classification

International Federation for Documentation.

Canons of classification applied to "the subject," "the expansive," "the decimal" and "the Library of Congress" classifications

W. C. Berwick Sayers

Classification of correspondence

United States. Dept. of State. Bureau of Indexes and Archives.

An Introduction to the Twentieth Edition of the Dewey Decimal Classification

C. D. Batty

Classification décimale universelle

International Federation for Documentation.

Clasificación decimal universal

International Federation for Documentation.