P
Peter A. Williams
1 Jul 1945
4 works on record
Works

Invasive species management
A weed risk assessment system for new conservation weeds in New Zealand
A weed risk assessment system for new conservation weeds in New Zealand
Climbing spindle berry (Celastrus orbiculatus Thunb.) biology, ecology, and impacts in New Zealand
Climbing spindle berry (Celastrus orbiculatus Thunb.) biology, ecology, and impacts in New Zealand
A proposed conservation weed risk assessment system for the New Zealand border
A proposed conservation weed risk assessment system for the New Zealand border