Gravetter, F. J., Wallnau, L. B., & Gravetter, F. J. (2014). Essentials of statistics for the behavioral sciences. Wadsworth, Cengage Learning.
Chicago (17e ed.) BronvermeldingGravetter, Frederick J., Larry B. Wallnau, en Frederick J. Gravetter. Essentials of Statistics for the Behavioral Sciences. Australia: Wadsworth, Cengage Learning, 2014.
MLA (9e ed.) BronvermeldingGravetter, Frederick J., et al. Essentials of Statistics for the Behavioral Sciences. Wadsworth, Cengage Learning, 2014.