Carkhuff, R. R., & Anthony, W. A. (1979). The skills of helping: An introduction to counseling skills. Human Resource Development Press.
Chicago-čujuhus (17. p.)Carkhuff, Robert R., juo William Alan Anthony. The Skills of Helping: An Introduction to Counseling Skills. Amherst, Mass.: Human Resource Development Press, 1979.
MLA-čujuhus (9. p.)Carkhuff, Robert R., juo William Alan Anthony. The Skills of Helping: An Introduction to Counseling Skills. Human Resource Development Press, 1979.
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