Cita APA (7th ed.)

David, M., & Sutton, C. D. (2011). Social research: An introduction (2nd ed.). Sage.

Cita Chicago (17th ed.)

David, Matthew, i Carole D. Sutton. Social Research: An Introduction. 2nd ed. Los Angeles, Calif: Sage, 2011.

Cita MLA (9th ed.)

David, Matthew, i Carole D. Sutton. Social Research: An Introduction. 2nd ed. Sage, 2011.