Cita APA (7th ed.)

Gravetter, F. J., & Wallnau, L. B. (2009). Statistics for the behavioral sciences (8th ed.). Wadsworth/Cengage Learning.

Cita Chicago (17th ed.)

Gravetter, Frederick J., i Larry B. Wallnau. Statistics for the Behavioral Sciences. 8th ed. Belmont, Calif: Wadsworth/Cengage Learning, 2009.

Cita MLA (9th ed.)

Gravetter, Frederick J., i Larry B. Wallnau. Statistics for the Behavioral Sciences. 8th ed. Wadsworth/Cengage Learning, 2009.