Cita APA (7th ed.)

Parks, P. (1976). Underwater life: The world you never see. Homlyn.

Cita Chicago (17th ed.)

Parks, Peter. Underwater Life: The World You Never See. London: Homlyn, 1976.

Cita MLA (9th ed.)

Parks, Peter. Underwater Life: The World You Never See. Homlyn, 1976.