TY  - BOOK
AU  - Sharma, S. R.
TI  - Encyclopaedia of scientific developments inventions and discoveries
SN  - 8186505156 (set)
U1  - R 503 
PY  - 1996///
CY  - New Delhi
PB  - Bhavana Books
KW  - Education
KW  - Health
KW  - Science
ER  -