Rafferty, J. P. (2011). Conservation and ecology. Britannica Educational Pub. in association with Rosen Educational Services.
Chicago-Zitierstil (17. Ausg.)Rafferty, John P. Conservation and Ecology. New York, NY: Britannica Educational Pub. in association with Rosen Educational Services, 2011.
MLA-Zitierstil (8. Ausg.)Rafferty, John P. Conservation and Ecology. Britannica Educational Pub. in association with Rosen Educational Services, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.