Gaya APA

Environmental Economics: an Introduction. (2006). New York: McGraw-Hill.

Gaya Chicago

Environmental Economics: an Introduction. Ed.4. New York: McGraw-Hill, 2006. .

Gaya MLA

Environmental Economics: an Introduction. Ed.4. New York: McGraw-Hill, 2006. .

Gaya Turabian

Environmental Economics: an Introduction. New York: McGraw-Hill, 2006. .