Cita APA (7th ed.)

Kimball, J. W. (1983). Biology (6th.ed.). WCB.

Cita Chicago (17th ed.)

Kimball, John W. Biology. 6th.ed. Iowa: WCB, 1983.

Cita MLA (9th ed.)

Kimball, John W. Biology. 6th.ed. WCB, 1983.