TY  - BOOK
AU  - Weber, Ewald  .
TI  - Invasive plant species of the World: A reference guide to environmental weeds / 
SN  - 0-85199-695-7
U1  - I.1 
PY  - 2003///
CY  - UK : 
PB  - CABI Publishing , 
KW  - Weeds-Control
ER  -