Columbia subject headings:
Harvard subject headings:
Knowledge, Theory of
Piaget, Jean, 1896-1980.
Thought and thinking
Vygotskiĭ, L. S. (Lev Semenovich), 1896-1934
Princeton subject headings:
Knowledge, Theory of.
Piaget, Jean, 1896-1980.
Thought and thinking--Social aspects.
Thought and thinking.
Vygotskiĭ, L. S. (Lev Semenovich), 1896-1934.