Cita APA (7a ed.)

Jackson, M. H. (1993). Galápagos: A natural history (Rev. and expanded ed.). University of Calgary Press.

Cita Chicago Style (17a ed.)

Jackson, Michael H. Galápagos: A Natural History. Rev. and expanded ed. Calgary: University of Calgary Press, 1993.

Cita MLA (8a ed.)

Jackson, Michael H. Galápagos: A Natural History. Rev. and expanded ed. University of Calgary Press, 1993.