TY  - BOOK
AU  - Laxman Prasad
AU  - Mishra, Vinod Kumar
TI  - Vishwa ke Mahaan Aavishkaarek aur unke Aavishkaar 
SN  - 9788170165958
U1  - 609.2 
PY  - 1003///
CY  - New Delhi
PB  - Kitabgher Prakashan 
KW  - Inventions
KW  - Mahaan Aavishkarek
KW  - Gen
N1  - index included
ER  -