Cita APA (7a ed.)

Dunne, P., & Karlson, K. (2019). Gulls Simplified: A Comparative Approach to Identification. Princeton University Press.

Cita Chicago Style (17a ed.)

Dunne, Pete, y Kevin Karlson. Gulls Simplified: A Comparative Approach to Identification. Woodstock, Oxfordshire: Princeton University Press, 2019.

Cita MLA (8a ed.)

Dunne, Pete, y Kevin Karlson. Gulls Simplified: A Comparative Approach to Identification. Princeton University Press, 2019.