Cita APA (7th ed.)

Babbie, E. (2004). The Practice of Social Research (10th.). Thomson Learning.

Cita Chicago (17th ed.)

Babbie, Earl. The Practice of Social Research. 10th. Singapore: Thomson Learning, 2004.

Cita MLA (9th ed.)

Babbie, Earl. The Practice of Social Research. 10th. Thomson Learning, 2004.