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Agriculture
190
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98
Agriculture & Farming
77
Economic aspects
39
Agriculture and state
23
Research
19
Cattle
18
Ganado
18
Agricultural pests
15
Agriculture, Cooperative
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History
15
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Historia
14
Agricultural engineering
13
Social aspects
12
Agricultura y estado
11
Agricultural laborers
11
Aspectos económicos
11
Control
11
Sustainable agriculture
11
Agricultural ecology
10
Agricultural industries
10
Agricultural laws and legislation
10
Rural conditions
10
Agronomy
9
Law and legislation
9
Política agraria
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Derecho
8
Legislación
8
Aspectos sociales
7
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