TY  - BOOK
AU  - Heywood, V.H.
TI  - Texonomy and Ecology
SN  - 0123469600
U1  - 581.5 
PY  - 1973///
CY  - London
PB  - Academic Press
KW  - Botanical sciences
KW  - Pure Sciences
KW  - Plant Ecology
ER  -