Cita APA (7th ed.)

Ritter, C. (1968). The essence of Plato's philosophy. Russell & Russell.

Cita Chicago (17th ed.)

Ritter, Constantin. The Essence of Plato's Philosophy. New York: Russell & Russell, 1968.

Cita MLA (9th ed.)

Ritter, Constantin. The Essence of Plato's Philosophy. Russell & Russell, 1968.