Cita APA (7th ed.)

Bajema, C. J. (1974). Natural selection. Dowden, Hutchinson & Ross.

Cita Chicago (17th ed.)

Bajema, Carl Jay. Natural Selection. Stroudsburg, Pa.: Dowden, Hutchinson & Ross, 1974.

Cita MLA (9th ed.)

Bajema, Carl Jay. Natural Selection. Dowden, Hutchinson & Ross, 1974.