APA (7th ed.) Citation

Herdman, M. M. (1947). Classification: An introductory manual (2nd edition.). American Library Association.

Chicago Style (17th ed.) Citation

Herdman, Margaret May. Classification: An Introductory Manual. 2nd edition. Chicago: American Library Association, 1947.

MLA (9th ed.) Citation

Herdman, Margaret May. Classification: An Introductory Manual. 2nd edition. American Library Association, 1947.

Warning: These citations may not always be 100% accurate.