TY  - BOOK
AU  - Williams,Peter A.
AU  - Nicol,Euan
AU  - Newfield,Melanie
TI  - Assessing the risk to indigenous New Zealand biota from new exotic plant taxa and genetic material
T2  - Science for conservation
SN  - 047821944X
U1  - 581.65 23
PY  - 2000///
CY  - Wellington, Nueva Zelanda
PB  - Department of Conservation
ER  -