Dyfyniad APA

Johnson, D. M. (1961). Psychology: A problems solving approach. Harper & Brothers.

Dyfyniad Arddull Chicago

Johnson, Donald M. Psychology: A Problems Solving Approach. New York: Harper & Brothers, 1961.

Dyfyniad MLA

Johnson, Donald M. Psychology: A Problems Solving Approach. Harper & Brothers, 1961.

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