APA (7th ed.) Citation

Cohen, M. R., & Nagel, E. (1944). An introduction to logic and scientific method. War Department education manual.

Chicago Style (17th ed.) Citation

Cohen, Morris R., and Ernest Nagel. "An Introduction to Logic and Scientific Method." War Department Education Manual 1944.

MLA (8th ed.) Citation

Cohen, Morris R., and Ernest Nagel. "An Introduction to Logic and Scientific Method." War Department Education Manual, 1944.