Cita APA (7a ed.)

Farrell, E. J. (1917). An introduction to political philosophy. Longmans, Green and Co..

Cita Chicago Style (17a ed.)

Farrell, Edelmiro J. An Introduction to Political Philosophy. London: Longmans, Green and Co., 1917.

Cita MLA (9a ed.)

Farrell, Edelmiro J. An Introduction to Political Philosophy. Longmans, Green and Co., 1917.