TY  - BOOK
TI  - How it works: science and technology
SN  - 0761473149 (set)
AV  - T9 .H738 2003
U1  - 603 21
PY  - 2003///
CY  - New York
PB  - Marshall Cavendish
KW  - Technology
KW  - Encyclopedias, Juvenile
KW  - Science
KW  - Encyclopedias
N1  - Includes indexes
ER  -