TY  - BOOK
AU  - Stebbins, G. Ledyard
AU  - Dunn, L.C.
TI  - Variation and evolution in plants
T2  - Columbia Biological Series
U1  - 581.3 21st ed.
PY  - 1950///
CY  - New York
PB  - Columbia University Press
KW  - Natural selection
KW  - Evalution( Biology)
KW  - Hybridization
KW  - Variation (Biology)
N1  - Index: pp 623-43
ER  -