Corey, M. S., & Corey, G. (1988). Becoming a helper. Brooks/Cole.
Chicagoスタイル(17版)引用形式Corey, Marianne Schneider, , Gerald Corey. Becoming a Helper. California: Brooks/Cole, 1988.
MLA(9版)引用形式Corey, Marianne Schneider, , Gerald Corey. Becoming a Helper. Brooks/Cole, 1988.
警告: この引用は必ずしも正確ではありません.