APA استشهاد

Sankar,Ulaganathan(Editor). (2001). Environmental economics. Oxford University Press.

استشهاد بنمط شيكاغو

Sankar,Ulaganathan(Editor). Environmental Economics. New Delhi ; New York: Oxford University Press, 2001.

MLA استشهاد

Sankar,Ulaganathan(Editor). Environmental Economics. Oxford University Press, 2001.