Powers, G. T. (1985). Practice focused research: Integrating human service practice and research. Prentice-Hall.
Chicago-referens (17:e uppl.)Powers, Gerald T. Practice Focused Research: Integrating Human Service Practice and Research. Englewood Cliffs, N. J: Prentice-Hall, 1985.
MLA-referens (9:e uppl.)Powers, Gerald T. Practice Focused Research: Integrating Human Service Practice and Research. Prentice-Hall, 1985.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.