Columbia subject headings:
Harvard subject headings:
Biological control systems--Congresses
Conservation of natural resources--Mathematical models--Congresses.
Ecology--Mathematical models--Congresses
Renewable natural resources--Mathematical models--Congresses.
Princeton subject headings:
Biological control systems--Congresses.
Conservation of natural resources--Mathematical models--Congresses.
Ecology--Mathematical models--Congresses.
Renewable natural resources--Mathematical models--Congresses.