TY  - BOOK
AU  - National Council of Educational Research and Training
TI  - Biology: a textbook for higher secondary schools section 6: evolution, heredity and adaption and section 7: general
U1  - 574 NAT(TB) 
PY  - 1967///
CY  - New Delhi
PB  - NCERT
KW  - Biology - Textbook
ER  -