Cita APA (7a ed.)

Untersteiner, M., & Freeman, K. (1954). The Sophists. Philosophical.

Cita Chicago Style (17a ed.)

Untersteiner, Mario, y Kathleen Freeman. The Sophists. New York: Philosophical, 1954.

Cita MLA (8a ed.)

Untersteiner, Mario, y Kathleen Freeman. The Sophists. Philosophical, 1954.