TY  - BOOK
AU  - Koopowitz,Harold
AU  - Kaye,Hilary
AU  - Knees,Sabina G.
TI  - Plant extinction: a global crisis 
SN  - 0747018065
U1  - 581 23
PY  - 1990///
CY  - London
PB  - Christopher Helm
KW  - Rare plants
KW  - Botany, Economic
N1  - Includes bibliography and index
ER  -