APA aipamena

Barden, B. R. (1937). Book numbers: A manual for students, with a basic code of rules. American Library Association.

Chicago Style aipamena

Barden, Bertha Rickenbrode. Book Numbers: A Manual for Students, with a Basic Code of Rules. Chicago: American Library Association, 1937.

MLA aipamena

Barden, Bertha Rickenbrode. Book Numbers: A Manual for Students, with a Basic Code of Rules. American Library Association, 1937.