APA (7th ed.) Citation

Berta, A. (1994). New specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Berta, Annalisa. New Specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon. Washington, D.C: Smithsonian Institution Press, 1994.

MLA (9th ed.) Citation

Berta, Annalisa. New Specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon. Smithsonian Institution Press, 1994.