TY  - GEN
AU  - Verma, P. S.
AU  - Agarwal, V. K.
TI  - Concept of evolution
SN  - 8121916801
U1  - 591.38 
PY  - 1999///
CY  - New Delhi
PB  - S. Chand and Company
KW  - ZOOLOGY
ER  -