Doyle, R. E. (1998). Essential skills and strategies in the helping process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole.
Trích dẫn kiểu ChicagoDoyle, Robert E. Essential Skills and Strategies in the Helping Process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole, 1998.
ציטוט MLADoyle, Robert E. Essential Skills and Strategies in the Helping Process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole, 1998.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.