APA ציטוט
Carkhuff, R. R. (1983). The art of helping (5th ed.). Human Resource Development Press.
Chicago Style (17th ed.) Citation
Carkhuff, Robert R. The Art of Helping. 5th ed. Amherst, Massachuttes: Human Resource Development Press, 1983.
ציטוט MLA
Carkhuff, Robert R. The Art of Helping. 5th ed. Human Resource Development Press, 1983.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.