TY  - BOOK
AU  - Davis, J. R. Ainsworth 
TI  - Encyclopadia of Scientific Developments Inventions and Discoveries
SN  - 8186505156
U1  - 509.03 
PY  - 1996///
CY  - New Delhi
PB  - Bhavana Books & Prints, 
KW  - Science
ER  -