Hilgard, E. R., & Bower, G. H. (1966). Theories of learning (3a. ed.). Appleton Century Crofts.
Chicago Style (17. basım) AtıfHilgard, Ernest Ropiequet, ve Gordon H. Bower. Theories of Learning. 3a. ed. Nueva York: Appleton Century Crofts, 1966.
MLA (9th ed.) AtıfHilgard, Ernest Ropiequet, ve Gordon H. Bower. Theories of Learning. 3a. ed. Appleton Century Crofts, 1966.
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