TY  - BOOK
AU  - Stebbins , G. Ledyard
TI  - Variation and evolution in plants
U1  - 581.3 
PY  - 1950///
CY  -  New York
PB  - Columbia University Press
KW  - Plants
KW  - Genetics and Evolution
KW  - Botany
N1  - Bibliography; pp. 563 - 622
ER  -