TY  - BOOK
AU  - Oxlade, Chris
TI  - Knowledge masters : how things work
SN  - 9781842399613
U1  - 530 OXL 
PY  - 2006///
CY  - London
PB  - Alligator Books
KW  - Machinery -- Juvenile literature
KW  - Technology -- Juvenile literature
N1  - Includes index
ER  -