Cita APA

Cohen, M. R., & Nagel, E. (1978). An introduction to logic and scientific method. Allied Publishers Pvt. Ltd..

Chicago Edition Citation

Cohen, Morris R., i Ernest Nagel. An Introduction to Logic and Scientific Method. New Delhi: Allied Publishers Pvt. Ltd., 1978.

Cita MLA

Cohen, Morris R., i Ernest Nagel. An Introduction to Logic and Scientific Method. Allied Publishers Pvt. Ltd., 1978.