Citazione Stile APA (7a Edizione)

Witte, R. S. (1993). Student workbook to accompany statistics (4th.ed.). HBJ.

Citazione stile Chigago Style (17a edizione)

Witte, Robert S. Student Workbook to Accompany Statistics. 4th.ed. Orlando: HBJ, 1993.

Citatione MLA (9a ed.)

Witte, Robert S. Student Workbook to Accompany Statistics. 4th.ed. HBJ, 1993.