TY  - BOOK
TI  - Infancy and epistemology: An evaluation of Piaget's theory ; edited by George -
U1  - 155.413 .1647a     
CY  - Gran Bretaña
KW  - Butterworth, George, ed
KW  - Niño, Estudio del
KW  - Piaget, Jean, 196-
N1  - 019986
ER  -