Cohen, M. R., & Nagel, E. (1944). An introduction to logic and scientific method. War Department education manual.
Chicago Style (17th ed.) CitationCohen, Morris R., and Ernest Nagel. "An Introduction to Logic and Scientific Method." War Department Education Manual 1944.
MLA (8th ed.) CitationCohen, Morris R., and Ernest Nagel. "An Introduction to Logic and Scientific Method." War Department Education Manual, 1944.
Warning: These citations may not always be 100% accurate.