TY  - BOOK
AU  - Heywood,V.H.
ED  - Institute of Biology.
TI  - Plant taxonomy
SN  - 0713126086
U1  - 580.12 21
PY  - 1976///
CY  - London
PB  - Edward Arnold
KW  - Plants
KW  - Classification
N1  - Bibliography: p. 62-63
ER  -