APA (7th ed.) Citation

Horner, N. (2012). What is social work?: Contexts and perspectives (4th ed.). Sage.

Chicago Style (17th ed.) Citation

Horner, Nigel. What Is Social Work?: Contexts and Perspectives. 4th ed. Los Angeles, CA: Sage, 2012.

MLA (9th ed.) Citation

Horner, Nigel. What Is Social Work?: Contexts and Perspectives. 4th ed. Sage, 2012.