Cita APA (7a ed.)

Carkhuff, R. R. (1969). Helping and human relations: A primer for lay and professional helpers. Holt, Rinehart and Winston, Inc.

Cita Chicago Style (17a ed.)

Carkhuff, Robert R. Helping and Human Relations: A Primer for Lay and Professional Helpers. New York: Holt, Rinehart and Winston, Inc, 1969.

Cita MLA (9a ed.)

Carkhuff, Robert R. Helping and Human Relations: A Primer for Lay and Professional Helpers. Holt, Rinehart and Winston, Inc, 1969.