327619 Clarkson, P. (2004). Gestalt counselling in action. London : SAGE Publications.
Chicagoスタイル(17版)引用形式327619 Clarkson, Petruska. Gestalt Counselling in Action. London : SAGE Publications, 2004.
MLA(9版)引用形式327619 Clarkson, Petruska. Gestalt Counselling in Action. London : SAGE Publications, 2004.
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