Cita APA (7a ed.)

Crossley, R. (2011). The Crossley ID Guide: Eastern Birds. Princeton University Press.

Cita Chicago Style (17a ed.)

Crossley, Richard. The Crossley ID Guide: Eastern Birds. Princeton, N.J.: Princeton University Press, 2011.

Cita MLA (8a ed.)

Crossley, Richard. The Crossley ID Guide: Eastern Birds. Princeton University Press, 2011.