TY  - GEN
AU  - GILBERT, William
AU  - GALILEI, Galileo
AU  - HARVEY, William
TI  - On the loadstone and magnetic bodies
AV  - AC 1 .G7 
PY  - 1952///
CY  - Chicago
PB  - William Benton
KW  - Magnetism
KW  - Mechanics --Early works to 1800
KW  - Physics --Early works to 1800
KW  - Blood --Circulation
ER  -