APA-referens (7:e uppl.)

Tullock, G., & Wagner, R. E. (1978). Policy analysis and deductive reasoning. Lexington Books.

Chicago-referens (17:e uppl.)

Tullock, Gordon, och Richard E. Wagner. Policy Analysis and Deductive Reasoning. Lexington, Mass: Lexington Books, 1978.

MLA-referens (9:e uppl.)

Tullock, Gordon, och Richard E. Wagner. Policy Analysis and Deductive Reasoning. Lexington Books, 1978.