SAHAKIAN, W. S. (1976). Introduction to the psychology of learning. Rand McNally.
Lua i Stíl Chicago (17ú heag.)SAHAKIAN, William S. Introduction to the Psychology of Learning. Chicago: Rand McNally, 1976.
Lua MLA (9ú heag.)SAHAKIAN, William S. Introduction to the Psychology of Learning. Rand McNally, 1976.
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