TY  - BOOK
AU  - Valentine, Charles Wilfred,
TI  - The normal child and some of his alonormalities: A general introduction to the psychology of childhood 
AV  - BF721 V314
PY  - 1956///
CY  - Harmondsworth, england
PB  - Penguin
KW  - Niños
KW  - Crecimiento
ER  -