Cita APA (7a ed.)

Schulenberg, T. S. (2007). Birds of Peru: Revised and Updated Edition. Princeton University Press.

Cita Chicago Style (17a ed.)

Schulenberg, Thomas S. Birds of Peru: Revised and Updated Edition. Princeton: Princeton University Press, 2007.

Cita MLA (8a ed.)

Schulenberg, Thomas S. Birds of Peru: Revised and Updated Edition. Princeton University Press, 2007.