Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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