Cita APA (7a ed.)

Bellow, S. (1976). Humboldt's gift. Avon.

Cita Chicago Style (17a ed.)

Bellow, Saul. Humboldt's Gift. New York: Avon, 1976.

Cita MLA (9a ed.)

Bellow, Saul. Humboldt's Gift. Avon, 1976.