TY  - BOOK
AU  - Porter,C.L.
TI  - Taxonomy of flowering plants
T2  - A Series of books in biology
U1  - 582.13 
PY  - 1967///]
CY  - San Francisco
PB  - W. H. Freeman
KW  - Angiosperms
KW  - Botany
KW  - Classification
ER  -