TY  - BOOK
AU  - Ausubel,David Paul
AU  - Sullivan,Edmund V.
TI  - Theory and problems of child development
SN  - 0808906410
AV  - MED. BF721 .A8
PY  - 1970///]
CY  - New York
PB  - Grune & Stratton
KW  - Child psychology
ER  -