TY  - BOOK
TI  - On the Loadstone and magnetic bodies / 
PY  - 1952///
CY  - Chicago : 
PB  - Encyclopaedia Britannica, 
N1  - Contiene además: Concerning the two new sciences / Galileo Galilei.-- On the motion of the heart and blood in animals. On the circulation of the blood. On the generation of animals / William Harvey
ER  -