APA (7th ed.) Citation

Sokal, R. R., & Rohlf, F. J. (1987). Introduction to biostatistics (2nd ed.). Freeman.

Chicago Style (17th ed.) Citation

Sokal, Robert R., and F. James Rohlf. Introduction to Biostatistics. 2nd ed. New York: Freeman, 1987.

MLA (9th ed.) Citation

Sokal, Robert R., and F. James Rohlf. Introduction to Biostatistics. 2nd ed. Freeman, 1987.