TY  - BOOK
AU  - Chhattisgarh, State Council of Educatinal Research and Train
TI  - Science : class-7
U1  - 500 CHH(TB) 
PY  - 2006///
CY  - Raipur
PB  - Chhattisgarh text book corporation
KW  - Science - Chhattisgarh - Textbook
ER  -