Egan, G., & McGourty, R. F. (2007). Exercises in helping skills: A manual to accompany the skilled helper. Belmont, CA: Thomson/Brooks cole.
Chicago Stili AlıntıEgan, Gerard, ve Richard F. McGourty. Exercises in Helping Skills: A Manual to Accompany the Skilled Helper. Belmont, CA: Thomson/Brooks cole, 2007.
MLA AlıntıEgan, Gerard, ve Richard F. McGourty. Exercises in Helping Skills: A Manual to Accompany the Skilled Helper. Belmont, CA: Thomson/Brooks cole, 2007.
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