APA (7th ed.) Zitazioa

Cohen, M. R., & Nagel, E. (1934). An introduction to logic and scientific method. Harcourt, Brace & World.

Chicago Style (17th ed.) Zitazioa

Cohen, Morris Raphael, eta Ernest Nagel. An Introduction to Logic and Scientific Method. Nueva York: Harcourt, Brace & World, 1934.

MLA (9th ed.) Zitazioa

Cohen, Morris Raphael, eta Ernest Nagel. An Introduction to Logic and Scientific Method. Harcourt, Brace & World, 1934.