AU  - Stebbins,G Ledyard
AU  - McElroy D.William
AU  - Swanson,P.Carl
TI  - Processes of organic evolution / 
T2  - Prentice- Hall Biological Science Series 
U1  - 575 
PY  - 1970///
CY  - New Delhi : 
PB  - Prentice-Hall of India , 
KW  - Organic Evolution
ER  -