APA-viite (7. p.)

Cotter, A. C. (1947). Natural species: An essay in definition and classification. Weston College Press.

Chicago-viite (17. p.)

Cotter, A. C. Natural Species: An Essay in Definition and Classification. Weston, Mass.: Weston College Press, 1947.

MLA-viite (8. p.)

Cotter, A. C. Natural Species: An Essay in Definition and Classification. Weston College Press, 1947.