APA (7e ed.) Bronvermelding

Babbie, E. (2014). The Basics of social research (6th ed.). Wadsworth.

Chicago (17e ed.) Bronvermelding

Babbie, Earl. The Basics of Social Research. 6th ed. Australia: Wadsworth, 2014.

MLA (9e ed.) Bronvermelding

Babbie, Earl. The Basics of Social Research. 6th ed. Wadsworth, 2014.