APA

Kellert Stephen R,, . (1997). Encyclopedia of the environment Vol. IV. New York: Simon & Schuster Macmillan.

Chicago

Kellert Stephen R,, . 1997. Encyclopedia of the environment Vol. IV. New York: Simon & Schuster Macmillan.

Harvard

Kellert Stephen R,, . (1997). Encyclopedia of the environment Vol. IV. New York: Simon & Schuster Macmillan.

MLA

Kellert Stephen R,, . Encyclopedia of the environment Vol. IV. New York: Simon & Schuster Macmillan. 1997.