TY  - BOOK
AU  - Hiroko Wilde
AU  - Tina M.Frow
ED  - Educational technologies limited
TI  - Illustrated encyclopedia of science and nature: energy and physics I
SN  - 9628851373
U1  - 531.6 
PY  - 2004///
CY  - [Place of publication not identified]
PB  - Educational technologies limited
N1  - Includes glossary; Forces and pressure----Gravity and motion----The mysteries of light----The physics of sound
ER  -