Brill, N. I. (1978). Working with people: The helping process. Philadelphia: Lippincott.
Trích dẫn kiểu ChicagoBrill, Naomi I. Working With People: The Helping Process. Philadelphia: Lippincott, 1978.
Deismireacht MLABrill, Naomi I. Working With People: The Helping Process. Philadelphia: Lippincott, 1978.
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