APA (7e ed.) Bronvermelding
Babbie, E. R. (2011). The basics of social research (5th ed.). Wadsworth / Cengage Learning.
Chicago (17e ed.) Bronvermelding
Babbie, Earl R. The Basics of Social Research. 5th ed. Australia Belmont, CA: Wadsworth / Cengage Learning, 2011.
MLA (9e ed.) Bronvermelding
Babbie, Earl R. The Basics of Social Research. 5th ed. Wadsworth / Cengage Learning, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.