AU  - HANN,JUDITH
TI  - HOW SCIENCE WORKS  
T2  - EYEWITNESS SCIENCE GUIDES
SN  - 0863186025
U1  - 507.8/HAN 
PY  - 1993///
CY  - LONDON
PB  - DORLING KINDERSLEY LIMITED
KW  - SCIENCE
KW  - EDUCATION
KW  - PROJECTS
KW  - EXPERIEMENTS
ER  -