Gaya APA

Westman, Walter E.. (1985). Ecology, impact assessment, and environmental planning . New York: John Wiley n Sons.

Gaya Chicago

Westman, Walter E.. Ecology, impact assessment, and environmental planning. New York: John Wiley n Sons, 1985. Text.

Gaya MLA

Westman, Walter E.. Ecology, impact assessment, and environmental planning. New York: John Wiley n Sons, 1985. Text.

Gaya Turabian

Westman, Walter E.. Ecology, impact assessment, and environmental planning. New York: John Wiley n Sons, 1985. Print.