Columbia subject headings:
Cognition.
Learning, Psychology of.
Motivation (Psychology)
Nuttin, Joseph, 1909-1988.
Harvard subject headings:
Cognition.
Learning, Psychology of.
Motivation (Psychology)
Nuttin, Jozef, 1909-
Princeton subject headings:
Cognition.
Learning, Psychology of.
Motivation (Psychology)
Nuttin, Joseph, 1909-1988.