TY  - BOOK
AU  - Pledge,H.T.
TI  - Science since 1500 : a short history of mathematics, physics, chemistry, biology 
U1  - 509 PLE  
PY  - 1959///.
CY  - New York : 
PB  - Harper and Brothers Publishers, 
KW  - Mathematics-History
KW  - Science-History
ER  -