Columbia subject headings:
Land use, Rural--Latin America.
Soil conservation--Latin America.
Soil degradation--Latin America--Case studies.
Sustainable agriculture--Latin America.
Harvard subject headings:
Land use, Rural--Latin America.
Soil conservation--Latin America.
Soil degradation--Latin America--Case studies.
Sustainable agriculture--Latin America.
Princeton subject headings:
Land use, Rural--Latin America.
Soil conservation--Latin America.
Soil degradation--Latin America--Case studies.
Sustainable agriculture--Latin America.