Gravetter, F. J., Wallnau, L. B., & Gravetter, F. J. (2014). Essentials of statistics for the behavioral sciences. Wadsworth, Cengage Learning.
Cita Chicago (17th ed.)Gravetter, Frederick J., Larry B. Wallnau, i Frederick J. Gravetter. Essentials of Statistics for the Behavioral Sciences. Australia: Wadsworth, Cengage Learning, 2014.
Cita MLA (9th ed.)Gravetter, Frederick J., et al. Essentials of Statistics for the Behavioral Sciences. Wadsworth, Cengage Learning, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.