APA Style

Sokal, R, R., Rohlf, F, J. (2012). Biometry; the principles and practice of statistics in biological research (4th ed.). New York: W.H. Freeman and Company.

MLA Style

Sokal, Robert, R.., Rohlf, F., James. "Biometry; the principles and practice of statistics in biological research". 4th ed. New York: W.H. Freeman and Company, 2012. .