3900
3843
Piaget, Jean
6981-
The principles of genetic epistemology
London
Routledge and K. Paul
1972
v, 98p
Translation os L'Epistemologie genetique
Bibliography: p.94-95
translated from the French by Wolfe Mays
Cognition )Child psychology(
BF
723
.
C5
P4913
AU
TI
ED.هگمشد
ED
