APA citiranje

Doyle, R. E. (1998). Essential skills and strategies in the helping process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole.

Trích dẫn kiểu Chicago

Doyle, Robert E. Essential Skills and Strategies in the Helping Process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole, 1998.

MLA citiranje

Doyle, Robert E. Essential Skills and Strategies in the Helping Process: Robert E. Doyle. Pacific Grove, Calif: Brooks/Cole, 1998.