TY  - BOOK
AU  - Chhatwal, G.R.
AU  - Kumar, Raj
TI  - Encyclopaedia of World Great Scientist ( Volume-5 )
SN  - 8170416507
U1  - 925 
PY  - 1997///
CY  - New Delhi
PB  - Anmol Publications Pvt. Ltd.
ER  -