Cita APA (7th ed.)

Rubin, A., & Babbie, E. R. (2005). Research methods for social work (5th ed.). Brooks/Cole.

Cita Chicago (17th ed.)

Rubin, Allen, i Earl R. Babbie. Research Methods for Social Work. 5th ed. Australia: Brooks/Cole, 2005.

Cita MLA (9th ed.)

Rubin, Allen, i Earl R. Babbie. Research Methods for Social Work. 5th ed. Brooks/Cole, 2005.