Grube, G. M. A. (1980). Plato's thought. Athlone Press.
Cita Chicago (17th ed.)Grube, G. M. A. Plato's Thought. London: Athlone Press, 1980.
Cita MLA (9th ed.)Grube, G. M. A. Plato's Thought. Athlone Press, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.