Cita APA (7a ed.)

Earl R. Babbie. (2016). The Basics of Social Research, 7th Edition (seventh edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Earl R. Babbie. The Basics of Social Research, 7th Edition. seventh edition. United States of America: Cengage Learning, 2016.

Cita MLA (8a ed.)

Earl R. Babbie. The Basics of Social Research, 7th Edition. seventh edition. Cengage Learning, 2016.