Cita APA (7a ed.)

Wells, J. V. (2007). Birder's Conservation Handbook: 100 North American Birds at Risk. Princeton University Press.

Cita Chicago Style (17a ed.)

Wells, Jeffrey V. Birder's Conservation Handbook: 100 North American Birds at Risk. Princeton: Princeton University Press, 2007.

Cita MLA (8a ed.)

Wells, Jeffrey V. Birder's Conservation Handbook: 100 North American Birds at Risk. Princeton University Press, 2007.