APA-referens (7:e uppl.)

Freedman, R. (1952). Principles of sociology: A text readings. Holt.

Chicago-referens (17:e uppl.)

Freedman, Ronald. Principles of Sociology: A Text Readings. New York: Holt, 1952.

MLA-referens (9:e uppl.)

Freedman, Ronald. Principles of Sociology: A Text Readings. Holt, 1952.