Cita APA (7a ed.)

Hill, G. E., & McGraw, K. J. (2006). Bird coloration. Harvard University Press.

Cita Chicago Style (17a ed.)

Hill, Geoffrey E., y Kevin J. McGraw. Bird Coloration. Cambridge, Mass. ; London: Harvard University Press, 2006.

Cita MLA (9a ed.)

Hill, Geoffrey E., y Kevin J. McGraw. Bird Coloration. Harvard University Press, 2006.