Columbia subject headings:
Agricultural ecology--South America--Congresses.
Agricultural innovations--South America--Congresses.
Alternative agriculture--South America--Congresses.
Land use, Rural--South America--Planning--Congresses.
Rural development--South America--Congresses.
Harvard subject headings:
Agricultural ecology--South America--Congresses.
Agricultural innovations--South America--Congresses.
Land use, Rural--South America--Planning--Congresses.
Rural development--South America--Congresses.
Princeton subject headings:
Agricultural ecology--Latin America--Congresses.
Diseases--Latin America--Transmission--Congresses.
Insects--Diseases--Latin America--Congresses.
Latin America--Rural conditions--Congresses.
Parasitic diseases--Latin America--Congresses.
Parasitic insects--Latin America--Congresses.
Rural development--Latin America--Congresses.