Cita APA (7a ed.)
Corey, G. (1991). Group techniques (2nd ed.). Brooks/Cole.
Cita Chicago Style (17a ed.)
Corey, Gerald. Group Techniques. 2nd ed. California: Brooks/Cole, 1991.
Cita MLA (9a ed.)
Corey, Gerald. Group Techniques. 2nd ed. Brooks/Cole, 1991.
Precaución: Estas citas no son 100% exactas.