TY  - BOOK
AU  - Heywood V H Ed.
ED  - International symposium on taxonomy and ecology (1972 : England)
TI  - Proceeding on taxonomy and ecology
T2  - Systematics as association special volume; 5
U1  - I:11p1,N73, L3 
PY  - 1973///
CY  - London
PB  - Academic press        
KW  - Plant Classification
ER  -