Gaya APA

Kellert, S, R. et al (1997). Macmillan encyclopedia of the environment [ vol 1 ] (Vol. 1). London: Simon and Schuster and Prentice Hall Iternational.

Gaya MLA

Kellert, Stephen, R. et al. "Macmillan encyclopedia of the environment [ vol 1 ]". Vol. 1 London: Simon and Schuster and Prentice Hall Iternational, 1997. Text.