Citazione Stile APA (7a Edizione)

Babbie, E. R. (2007). The practice of social research (Eleventh edition.). Thomson/Wadsworth.

Citazione stile Chigago Style (17a edizione)

Babbie, Earl R. The Practice of Social Research. Eleventh edition. Australia: Thomson/Wadsworth, 2007.

Citatione MLA (9a ed.)

Babbie, Earl R. The Practice of Social Research. Eleventh edition. Thomson/Wadsworth, 2007.