Columbia subject headings:
Harvard subject headings:
Grassland ecology--Australia--Congresses.
Grassland ecology--New Zealand--Congresses.
Insect pests--Biological control--Australia--Congresses.
Insect pests--Biological control--New Zealand--Congresses.
Invertebrates--Ecology--Australia--Congresses.
Invertebrates--Ecology--New Zealand--Congresses.
Princeton subject headings:
Grassland animals--Congresses.
Grassland ecology--Congresses.
Invertebrates--Congresses.
Pests--Control--Congresses.