Cita APA

Graham, F., Halle, L. J. 1., Johnsgard, P. A. 1., LaBastille Bowes, A. 1., & Laycock, G. E. 1. (1983). The wonder of birds (First edition.). Washington, D.C.: National Geographic Society.

Citación estilo Chicago

Graham, Frank, Louis Joseph 1910-1998 Halle, Paul Austin 1931-2021 Johnsgard, Anne 1933-2011 LaBastille Bowes, y George Edwin 1921-2014 Laycock. The Wonder of Birds. First edition. Washington, D.C.: National Geographic Society, 1983.

Cita MLA

Graham, Frank, et al. The Wonder of Birds. First edition. Washington, D.C.: National Geographic Society, 1983.