Cita APA (7a ed.)

Peikoff, L. (1991). Objetivism, the philosophy of Ayn Rand. Dutton.

Cita Chicago Style (17a ed.)

Peikoff, Leonard. Objetivism, the Philosophy of Ayn Rand. New York: Dutton, 1991.

Cita MLA (9a ed.)

Peikoff, Leonard. Objetivism, the Philosophy of Ayn Rand. Dutton, 1991.