Columbia subject headings:
Agriculture--Tropics--Congresses.
Climatic changes--Tropics--Congresses.
Deforestation--Environmental aspects--Tropics--Congresses.
Deforestation--Tropics--Congresses.
Soils--Tropics--Congresses.
Harvard subject headings:
Agriculture--Tropics--Congresses
Climatic changes--Tropics--Congresses.
Deforestation--Environmental aspects--Tropics--Congresses.
Deforestation--Tropics--Congresses.
Soils--Tropics--Congresses.
Princeton subject headings:
Agriculture--Tropics--Congresses.
Climatic changes--Tropics--Congresses.
Deforestation--Environmental aspects--Tropics--Congresses.
Deforestation--Tropics--Congresses.
Soils--Tropics--Congresses.