DDC, Dewey decimal classification. 301-307 sociology : expanded version based on edition 19 / prepared by John P. Comaromi and Margaret J. Warren.

by Dewey, Melvil, 1851-1931.
Published 1982

List of subject headings; with Suggestions for the beginner in subject heading work

by Sears, Minnie Earl, 1873-1933
Published 1959