Corey, M. S., & Corey, G. (1993). Becoming a helper (2nd ed.). Brooks/Cole Pub. Co..
Čikaški stil citiranja (17. izdanje)Corey, Marianne Schneider, i Gerald Corey. Becoming a Helper. 2nd ed. Pacific Grove, Calif.: Brooks/Cole Pub. Co., 1993.
MLA način citiranja (8. izdanje)Corey, Marianne Schneider, i Gerald Corey. Becoming a Helper. 2nd ed. Brooks/Cole Pub. Co., 1993.
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