TY  - BOOK
AU  - NATIONAL COLLEGEOF EDUCATION
TI  - YOUNG PEOPLE'S SCIENCE ENCYCLOPEDIA (22 VOLUME) / 
U1  - CH 
CY  - [S.N] : 
PB  - CHILDREN PRESS
KW  - CHILDREN
KW  - ENCYCLOPEDIES
KW  - SCIENCE - ENCYCLOPEDIAS AND DICTIONARY
ER  -