TY  - BOOK
AU  - NCERT
TI  - Biology: textbook for class XI 
SN  - 8174504966
U1  - 570 NCE-R 
PY  - 2006///
CY  - India
PB  - NCERT (National Council for Educational Research and Training)
KW  - Biology, Class XI
KW  - NCERT Textbook
ER  -