Agriculture 1,545 Economic aspects 1,167 Agriculture and state 676 History 623 Economic conditions 381 Food supply 298 Rural conditions 280 more ... Aspect économique 267 Agricultural laborers 219 Social conditions 179 Economic history 174 Economic policy 172 Conditions économiques 161 Peasants 161 Government policy 154 Land tenure 153 Politique agricole 151 cuadros estadísticos 140 statistical table 140 tableau statistique 140 Rural development 126 Histoire 116 Land reform 114 Food industry and trade 92 Agriculture, Cooperative 91 Environmental aspects 91 Labor unions 89 Produce trade 86 Migrant agricultural laborers 85 Economic development 83 less ...