Deismireacht APA

Gagne, R. M. (1962). Psychological principles in system development. Holt Rinehart and wiston.

Chicago Edition Citation

Gagne, Robert M. Psychological Principles in System Development. New York: Holt Rinehart and wiston, 1962.

Deismireacht MLA

Gagne, Robert M. Psychological Principles in System Development. Holt Rinehart and wiston, 1962.

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