Gaya APA

Kellert, S, R. (1997). Macmillan encyclopedia of the environment vol. 3 (vol. 3). New York: Simon & Schuster macmillan.

Gaya MLA

Kellert, Stephen, R.. "Macmillan encyclopedia of the environment vol. 3". vol. 3 New York: Simon & Schuster macmillan, 1997. ML.