TY  - BOOK
AU  - Dua, Shyam
AU  - Kohli, K. S
AU  - Makkar, Viny
TI  - Big book of inventions
SN  - 9788175736979
U1  - 001 DUA 
PY  - 2009///
CY  - New Delhi
PB  - Tiny Tot
KW  - General Knowledge
ER  -