Não informado. (1961). Counselor Education and Supervision. American Association for Counseling and Development.
Citace podle Chicago (17th ed.)Não informado. Counselor Education and Supervision. Alexandria, Va: American Association for Counseling and Development, 1961.
Citace podle MLA (8th ed.)Não informado. Counselor Education and Supervision. American Association for Counseling and Development, 1961.
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