TY  - BOOK
AU  - Ardley,Neil
TI  - How things work: fascinating projects and experiments that reveal the secrets of technology 
SN  - 9780751302158
U1  - 620 ARD 
PY  - 1995///
CY  - London
PB  - Dorling Kindersley
KW  - Machinery
KW  - Juvenile literature
KW  - Experiments
N1  - Includes index
ER  -