TI  - HOW THINGS WORK ENCYCLOPEDIA
SN  - 1405350129
U1  - 603/DOR 
PY  - 2010///
CY  - LONDON
PB  - DORLING KINDERSLEY LIMITED
KW  - APPLIED SCIENCE
KW  - TECHNOLOGY
KW  - AIR AND WATER
KW  - ENERGY
KW  - LIGHT AND SOUND
KW  - BITS AND BYTES
ER  -