Howell, D. C. (2010). Statistical methods for psychology (7th ed.). Wadsworth/Cengage Learning.
Citazione stile Chigago Style (17a edizione)Howell, David C. Statistical Methods for Psychology. 7th ed. Belmont, Calif: Wadsworth/Cengage Learning, 2010.
Citatione MLA (9a ed.)Howell, David C. Statistical Methods for Psychology. 7th ed. Wadsworth/Cengage Learning, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.