APA-Zitierstil (7. Ausg.)

Babbie, E. R. (2001). The practice of social research (9th ed.). Wadsworth Thomson Learning.

Chicago-Zitierstil (17. Ausg.)

Babbie, Earl R. The Practice of Social Research. 9th ed. Belmont, CA: Wadsworth Thomson Learning, 2001.

MLA-Zitierstil (9. Ausg.)

Babbie, Earl R. The Practice of Social Research. 9th ed. Wadsworth Thomson Learning, 2001.