TY  - BOOK
AU  - Porter, C. L.
TI  - Taxonomy of flowering plants
U1  - 582.13 
PY  - 1959///
CY  - London
PB  - W. H. Freeman
KW  - Angiosperms.
KW  - Plants -- Classification.
KW  - Angiospermes
N1  - Includes bibliographical references and index
ER  -