APA (7e ed.) Bronvermelding

Howell, D. C. (2017). Fundamental statistics for the behavioral sciences (Ninth edition.). Cengage Learning.

Chicago (17e ed.) Bronvermelding

Howell, David C. Fundamental Statistics for the Behavioral Sciences. Ninth edition. Boston, MA, USA: Cengage Learning, 2017.

MLA (9e ed.) Bronvermelding

Howell, David C. Fundamental Statistics for the Behavioral Sciences. Ninth edition. Cengage Learning, 2017.