APA

Sokal R. R., Rohlf F. J., . (1987). Introduction to biostatistics. New York: Freeman.

Chicago

Sokal Robert R, Rohlf F James, . 1987. Introduction to biostatistics. New York: Freeman.

Harvard

Sokal R. R., Rohlf F. J., . (1987). Introduction to biostatistics. New York: Freeman.

MLA

Sokal Robert R, Rohlf F James, . Introduction to biostatistics. New York: Freeman. 1987.