Gaya APA

Farb, Peter. (1973). Ecology . New York: Time Life Books.

Gaya Chicago

Farb, Peter. Ecology. New York: Time Life Books, 1973. Text.

Gaya MLA

Farb, Peter. Ecology. New York: Time Life Books, 1973. Text.

Gaya Turabian

Farb, Peter. Ecology. New York: Time Life Books, 1973. Print.