Clarkson, P. Gestalt counselling in action (4th edition.).
Chicago Edition CitationClarkson, Petruska. Gestalt Counselling in Action. 4th edition.
ציטוט MLAClarkson, Petruska. Gestalt Counselling in Action. 4th edition.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.