TY  - BOOK
AU  - Stebbins G Ledyard
TI  - Flowering plants: evolution above the species level
SN  - 0713124873
U1  - 582.13 
PY  - 1974///
CY  - London
PB  - Edward Arnold
KW  - Angiosperms
KW  - Evolution
KW  - Plants
ER  -