TY  - BOOK
AU  - H.T Pledge
TI  - Science Since 1500; Short History of Mathematics, Physics, Chemistry
U1  - 509 
PY  - 1966///
CY  - London
PB  - Her majesty`s Stationery Office
N1  - H.T Pledge: Science Since 1500; Short History of Mathematics, Physics, Chemistry.  (2nd)  London.  Her majesty`s Stationery Office, 1966.--(509PLE)
ER  -