APA (7e ed.) Bronvermelding

Howell, D. C. (1987). Statistical methods for psychology (Second edition.). Duxbury Press.

Chicago (17e ed.) Bronvermelding

Howell, David C. Statistical Methods for Psychology. Second edition. Boston: Duxbury Press, 1987.

MLA (8e ed.) Bronvermelding

Howell, David C. Statistical Methods for Psychology. Second edition. Duxbury Press, 1987.