TY  - BOOK
AU  - NCERT
TI  - Biology: textbook for class xii
SN  - 817450639X
U1  - 570 B521  
PY  - 2006///
CY  - New Delhi
PB  - NCERT
KW  - Biology
KW  - Plant physiology
KW  - Biological classification
KW  - Human Physiology
ER  -