Cita APA (7a ed.)

De Maddalena, A., Preti, A., & Polansky, T. (2007). Sharks of the Pacific Northwest: Including Oregon, Washington, British Columbia and Alaska. Harbour Pub..

Cita Chicago Style (17a ed.)

De Maddalena, Alessandro, Antonella Preti, y Tarik Polansky. Sharks of the Pacific Northwest: Including Oregon, Washington, British Columbia and Alaska. Madeira Park, B.C.: Harbour Pub., 2007.

Cita MLA (8a ed.)

De Maddalena, Alessandro, et al. Sharks of the Pacific Northwest: Including Oregon, Washington, British Columbia and Alaska. Harbour Pub., 2007.

Precaución: Estas citas no son 100% exactas.