TY  - BOOK
AU  - Brace,Edward
TI  - Science encyclopedia
SN  - 0600557367 :
U1  - 503 
PY  - 1990///
CY  - London
PB  - Hamlyn
KW  - Science
KW  - Encyclopedias, Juvenile
KW  - Technology
KW  - encyclopedias
KW  - Encyclopedias
N1  - Includes index
ER  -