Columbia subject headings:
Brazil--Congresses.
Latin America--Congresses.
Tropics--Congresses.
Harvard subject headings:
Human ecology--Brazil--Congresses.
Rain forest ecology--Brazil--Congresses.
Tropics--Congresses.
Princeton subject headings:
Human ecology--Brazil--Congresses--Periodicals.
Rain forest ecology--Brazil--Congresses--Periodicals.
Tropics--Congresses--Periodicals.