TY  - BOOK
AU  - Ausubel,David Paul
AU  - Sullivan,Edmund V
TI  - Theory and problems of child development
SN  - 0808906410
U1  - 155 
PY  - 1970///
CY  - New York
PB  - Grune & Stratton
KW  - Child psychology
N1  - Bibliography: p. 712-813
ER  -