APA引文

Babbie, E., & Earl Babbie. The practice of social research. Belmont, CA: Thomson Wadsworth.

Trích dẫn kiểu Chicago

Babbie, Earl, và Earl Babbie. The Practice of Social Research. Belmont, CA: Thomson Wadsworth.

MLA引文

Babbie, Earl, và Earl Babbie. The Practice of Social Research. Belmont, CA: Thomson Wadsworth.

警告：這些引文格式不一定是100％准確.