TY  - GEN
AU  - Kasinathan, Kalpana
AU  - Bhattacharya, Sanghamitra
TI  - Explore biology work book: 3 for the middle school
SN  - 0195650700
U1  - 570 
PY  - 1999///
CY  - New Deihi
PB  - Oxford University press
KW  - BIOLOGY
ER  -