Cita APA

Pavlova, A. (2009). Birds of the world (del Hoyo et al: Handbook of the birds of the world. Volume 12. Picathartes to tits and chickadees). Web

Citación estilo Chicago

Pavlova, Alexandra. Birds of the World (del Hoyo Et Al: Handbook of the Birds of the World. Volume 12. Picathartes to Tits and Chickadees). 2009.

Cita MLA

Pavlova, Alexandra. Birds of the World (del Hoyo Et Al: Handbook of the Birds of the World. Volume 12. Picathartes to Tits and Chickadees). 2009.