APA استشهاد

Tietenberg,Tom. (1998). Environmental economics and policy (2.). Addison - Wesley.

استشهاد بنمط شيكاغو

Tietenberg,Tom. Environmental Economics and Policy. 2. Massachusetts: Addison - Wesley, 1998.

MLA استشهاد

Tietenberg,Tom. Environmental Economics and Policy. 2. Addison - Wesley, 1998.