APA
Sokal R. R., Rohlf F. J., . (2003). Biometry: The principles and practice of statistics in biological research. New York: W. H. Freeman and Company.
Chicago
Sokal Robert R, Rohlf F James, . 2003. Biometry: The principles and practice of statistics in biological research. New York: W. H. Freeman and Company.
Harvard
Sokal R. R., Rohlf F. J., . (2003). Biometry: The principles and practice of statistics in biological research. New York: W. H. Freeman and Company.
MLA
Sokal Robert R, Rohlf F James, . Biometry: The principles and practice of statistics in biological research. New York: W. H. Freeman and Company. 2003.