Cita APA

Gray, M., & Webb, S. A. (2014). Social work: Theories and methods. London: Sage.

Citación estilo Chicago

Gray, Mel, y Stephen A. Webb. Social Work: Theories and Methods. London: Sage, 2014.

Cita MLA

Gray, Mel, y Stephen A. Webb. Social Work: Theories and Methods. London: Sage, 2014.