Ritter, J. A., & Vakalahi, H. F. O. (2015). 101 careers in social work (Second edition.). Springer Publishing Company.

Ritter, Jessica A., and Halaevalu F. Ofahengaue Vakalahi. 101 Careers in Social Work. Second edition. New York, New York: Springer Publishing Company, 2015.

Ritter, Jessica A., and Halaevalu F. Ofahengaue Vakalahi. 101 Careers in Social Work. Second edition. Springer Publishing Company, 2015.