TY  - BOOK
AU  - Valentine, Charles Wilfred
TI  - The normal child and some of his abnormalities: a general introduction to the psychology of childhood 
AV  - BF 721 V35
PY  - 1956///
CY  - Harmondsworth, Middlesex
PB  - Penguin
KW  - Psicología infantil
ER  -