APA (7th ed.) Citation

Carhuff, R. R. (1980). The art of helping IV. Human Resource Development Press.

Chicago Style (17th ed.) Citation

Carhuff, Robert R. The Art of Helping IV. Amherst, MA: Human Resource Development Press, 1980.

MLA (9th ed.) Citation

Carhuff, Robert R. The Art of Helping IV. Human Resource Development Press, 1980.