Cita APA (7th ed.)

Cohen, M. R., & Nagel, E. (1934). An Introduction to Logic and Scientific Method (Complete ed.). Harcourt, Brace.

Cita Chicago (17th ed.)

Cohen, Morris R., i Ernest Nagel. An Introduction to Logic and Scientific Method. Complete ed. New York: Harcourt, Brace, 1934.

Cita MLA (9th ed.)

Cohen, Morris R., i Ernest Nagel. An Introduction to Logic and Scientific Method. Complete ed. Harcourt, Brace, 1934.