Ohlsen, M. M. (1977). Group counseling (2nd ed.). Holt, Rinehart and Winston.
Chicagoスタイル(17版)引用形式Ohlsen, Merle M. Group Counseling. 2nd ed. New York: Holt, Rinehart and Winston, 1977.
MLA(9版)引用形式Ohlsen, Merle M. Group Counseling. 2nd ed. Holt, Rinehart and Winston, 1977.
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