Bolton, R. (1987). People skills: How to assert yourself, listen to others, and resolve conflicts. Brookvale, N.S.W: Simon and Schuster Australia.
Trích dẫn kiểu ChicagoBolton, Robert. People Skills: How to Assert Yourself, Listen to Others, and Resolve Conflicts. Brookvale, N.S.W: Simon and Schuster Australia, 1987.
Deismireacht MLABolton, Robert. People Skills: How to Assert Yourself, Listen to Others, and Resolve Conflicts. Brookvale, N.S.W: Simon and Schuster Australia, 1987.
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