TY  - BOOK
AU  - Yadav, Naresh
TI  - Four decades of national science exhibition for children : 1971-2010
SN  - 9789350072110
U1  - 372.3074 YAD-F 
PY  - 2012///
CY  - New Delhi
PB  - NCERT
KW  - Science Education Exhibition
ER  -