Cita APA (7th ed.)

Solbrig, O. T. (1966). Evolution and systematics. Macmillan.

Cita Chicago (17th ed.)

Solbrig, Otto T. Evolution and Systematics. New York, USA: Macmillan, 1966.

Cita MLA (9th ed.)

Solbrig, Otto T. Evolution and Systematics. Macmillan, 1966.