Hilgard, E. R. (1948). Theories of learning. Appleton-Century-Crofts.
Chicagoスタイル(17版)引用形式Hilgard, Ernest Ropiequet. Theories of Learning. New York: Appleton-Century-Crofts, 1948.
MLA(9版)引用形式Hilgard, Ernest Ropiequet. Theories of Learning. Appleton-Century-Crofts, 1948.
警告: この引用は必ずしも正確ではありません.