APA-čujuhus (7. p.)
Hill, W. F. (1977). Learning: A survey of psychological interpretations (3rd ed.). Thomas Y. Crowell.
Chicago-čujuhus (17. p.)
Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 3rd ed. New York: Thomas Y. Crowell, 1977.
MLA-čujuhus (9. p.)
Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 3rd ed. Thomas Y. Crowell, 1977.
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