Murphy, L. B. (1944). Emotional Factors in Learning. New York: Columbia University Press.
Dyfyniad Arddull ChicagoMurphy, Lois Barclay. Emotional Factors in Learning. New York: Columbia University Press, 1944.
Dyfyniad MLAMurphy, Lois Barclay. Emotional Factors in Learning. New York: Columbia University Press, 1944.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.