Cita APA (7a ed.)

Clark, W. S., & Wheeler, B. K. (2001). A field guide to hawks of North America (2nd ed.). Houghton Mifflin.

Cita Chicago Style (17a ed.)

Clark, William S., y Brian K. Wheeler. A Field Guide to Hawks of North America. 2nd ed. Boston, Mass.: Houghton Mifflin, 2001.

Cita MLA (8a ed.)

Clark, William S., y Brian K. Wheeler. A Field Guide to Hawks of North America. 2nd ed. Houghton Mifflin, 2001.

Precaución: Estas citas no son 100% exactas.