APA (7th ed.) Citation

Pfennig, D. W., & Pfennig, K. S. (2012). Evolution's wedge: Competition and the origins of diversity. University of California Press.

Chicago Style (17th ed.) Citation

Pfennig, David W., and Karin S. Pfennig. Evolution's Wedge: Competition and the Origins of Diversity. Berkeley: University of California Press, 2012.

MLA (9th ed.) Citation

Pfennig, David W., and Karin S. Pfennig. Evolution's Wedge: Competition and the Origins of Diversity. University of California Press, 2012.