APA

Swash A., Still R. & Lewington I. (2007). Birds, mammals, and reptiles of the Galápagos Islands. New Haven: Yale University Press.

Chicago

Swash Andy, Still Rob and Lewington Ian. 2007. Birds, mammals, and reptiles of the Galápagos Islands. New Haven: Yale University Press.

Harvard

Swash A., Still R. and Lewington I. (2007). Birds, mammals, and reptiles of the Galápagos Islands. New Haven: Yale University Press.

MLA

Swash Andy, Still Rob and Lewington Ian. Birds, mammals, and reptiles of the Galápagos Islands. New Haven: Yale University Press. 2007.