TY  - BOOK
AU  - Vigyan class VII
AU  - Choudhuree, Basant Kumar
TI  - Vigyan class VII
U1  - 500 
PY  - 2017///-18
CY  - Bhubaneswar
PB  - : Vidyalaya O Ganashiksha Vivag
KW  - Vigyan
ER  -