Cita APA (7a ed.)

FERM, V. (1965). A History of philosophical Systems. Littlefield Adams 6 Co.

Cita Chicago Style (17a ed.)

FERM, Vergilius. A History of Philosophical Systems. Paterson,NJ: Littlefield Adams 6 Co, 1965.

Cita MLA (9a ed.)

FERM, Vergilius. A History of Philosophical Systems. Littlefield Adams 6 Co, 1965.