Cita APA

Cohen, M. R., & Nagel, E. (1939). An introduction to logical and scientific method. London: George Routledge.

Citación estilo Chicago

Cohen, Morris R., and Ernest Nagel. An Introduction to Logical and Scientific Method. London: George Routledge, 1939.

Cita MLA

Cohen, Morris R., and Ernest Nagel. An Introduction to Logical and Scientific Method. London: George Routledge, 1939.