TY  - BOOK
TI  - The How and Why Wonder Book Of: Magnets and Magnetism- Electricity- Machines
U1  - 500 
PY  - 1981///
CY  - USA
PB  - Grosset & Dunlap
KW  - English
KW  - General
KW  - Science
N1  - The individual works in this set were previously published separately
ER  -