TY  - BOOK
ED  - National Council of Educational Research and Training
TI  - Exemplar problems science:  : class X 
SN  - 9788174509673
U1  - 500 N213E 
PY  - 2009///
CY  - New Delhi
PB  - NCERT
KW  - Science
N1  - Gifted by Prof. Prabha Chawla (Retd. Director Professor IGNOU)
ER  -