Cita APA

Olson, S. L., & Parris, D. C. (1987). The cretaceous birds of New Jersey. Washintong: Smithsonian Institution Press.

Citación estilo Chicago

Olson, Storre L., y David C. Parris. The Cretaceous Birds of New Jersey. Washintong: Smithsonian Institution Press, 1987.

Cita MLA

Olson, Storre L., y David C. Parris. The Cretaceous Birds of New Jersey. Washintong: Smithsonian Institution Press, 1987.