APA (7th ed.) Citation

Roze, U. (2009). The North American porcupine (2nd ed.). Comstock Pub. Associates/Cornell University Press.

Chicago Style (17th ed.) Citation

Roze, Uldis. The North American Porcupine. 2nd ed. Ithaca: Comstock Pub. Associates/Cornell University Press, 2009.

MLA (9th ed.) Citation

Roze, Uldis. The North American Porcupine. 2nd ed. Comstock Pub. Associates/Cornell University Press, 2009.