Hill, W. F. (1985). Learning: A survey of psychological interpretations (4th ed.). Harper & Row.
Chicago-čujuhus (17. p.)Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 4th ed. Cambridge: Harper & Row, 1985.
MLA-čujuhus (9. p.)Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 4th ed. Harper & Row, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.