Columbia subject headings:
Agricultural innovations--Colombia.
Agriculture and state--Colombia.
Agriculture--Economic aspects--Colombia.
Farmers--Colombia--Societies, etc.
Sociedad de Agricultores de Colombia.
Harvard subject headings:
Agriculture--Economic aspects--Colombia
Colombia--Economic conditions.
Princeton subject headings:
Agricultural innovations--Colombia.
Agriculture and state--Colombia.
Agriculture--Economic aspects--Colombia.
Farmers--Colombia--Societies, etc.
Sociedad de Agricultores de Colombia.