Citazione Stile APA (7a Edizione)

Howitt, D., & Cramer, D. (1997). A guide to computing statistics with SPSS for Windows. Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Howitt, Dennis, e Duncan Cramer. A Guide to Computing Statistics with SPSS for Windows. London: Prentice Hall, 1997.

Citatione MLA (9a ed.)

Howitt, Dennis, e Duncan Cramer. A Guide to Computing Statistics with SPSS for Windows. Prentice Hall, 1997.