TY  - BOOK
AU  - Stebbins, G. Ledyard
TI  - Processes of Organic evolution
SN  - 0876921209
U1  - 573.2 ST 31 P 
PY  - 1979///
CY  - New Delhi
PB  - Prentice-hall
KW  - Organic Evolution
KW  - Prosesses
ER  -