Diedrich, R. C., & Dye, H. (1972). Group procedures: Purposes, processes, and outcomes. Houghton Mifflin.
Cita Chicago Style (17a ed.)Diedrich, Richard C., y H.Allan Dye. Group Procedures: Purposes, Processes, and Outcomes. Boston: Houghton Mifflin, 1972.
Cita MLA (9a ed.)Diedrich, Richard C., y H.Allan Dye. Group Procedures: Purposes, Processes, and Outcomes. Houghton Mifflin, 1972.
Precaución: Estas citas no son 100% exactas.