APA ציטוט

Babbie, E. R. (2016). The practice of social research (14th ed.). Belmont, Calif.: Wadsworth Pub. Co..

Trích dẫn kiểu Chicago

Babbie, Earl R. The Practice of Social Research. 14th ed. Belmont, Calif.: Wadsworth Pub. Co., 2016.

ציטוט MLA

Babbie, Earl R. The Practice of Social Research. 14th ed. Belmont, Calif.: Wadsworth Pub. Co., 2016.