Cita APA (7th ed.)

SCHEFLER, W. C. (1979). Statistics for the biological sciences (2nd ed.). Addison-Wesley.

Cita Chicago (17th ed.)

SCHEFLER, William C. Statistics for the Biological Sciences. 2nd ed. Reading, Mass,: Addison-Wesley, 1979.

Cita MLA (9th ed.)

SCHEFLER, William C. Statistics for the Biological Sciences. 2nd ed. Addison-Wesley, 1979.