APA (7th ed.) Citation

Horner, N., Parker, J., & Bradley, G. (2012). What is Social Work? (4th ed.). Sage Publications.

Chicago Style (17th ed.) Citation

Horner, Nigel, Jonathan Parker, and Greta Bradley. What Is Social Work? 4th ed. Thousand Oaks, CA: Sage Publications, 2012.

MLA (9th ed.) Citation

Horner, Nigel, et al. What Is Social Work? 4th ed. Sage Publications, 2012.