APA Style

Carkhuff, Robert R.. (1987). The Art of Helping VI . : HRD Press.

Chicago Style

Carkhuff, Robert R.. The Art of Helping VI. : HRD Press, 1987. Text.

MLA Style

Carkhuff, Robert R.. The Art of Helping VI. : HRD Press, 1987. Text.

Turabian Style

Carkhuff, Robert R.. The Art of Helping VI. : HRD Press, 1987. Print.