Cita APA (7a ed.)

Barker, E. (1947). Greek political theory: Plato and his predecdssors (3 ed.). Methuen & Co..

Cita Chicago Style (17a ed.)

Barker, Ernest. Greek Political Theory: Plato and His Predecdssors. 3 ed. London: Methuen & Co., 1947.

Cita MLA (8a ed.)

Barker, Ernest. Greek Political Theory: Plato and His Predecdssors. 3 ed. Methuen & Co., 1947.