Wagenaar, T. C., & Babbie, E. R. (1998). Practicing social research: Guided activities to accompany "The practice of social research", eighth edition. Wadsworth.
Chicago-Zitierstil (17. Ausg.)Wagenaar, Theodore C., und Earl R. Babbie. Practicing Social Research: Guided Activities to Accompany "The Practice of Social Research", Eighth Edition. Belmont, Calif. [u.a.]: Wadsworth, 1998.
MLA-Zitierstil (9. Ausg.)Wagenaar, Theodore C., und Earl R. Babbie. Practicing Social Research: Guided Activities to Accompany "The Practice of Social Research", Eighth Edition. Wadsworth, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.