Agriculture Economic aspects 1,979 Agriculture and state 422 History 393 Rural conditions 361 Economic conditions 299 Land tenure 291 more ... Land reform 215 Peasants 213 Rural development 158 Social aspects 146 Statistics 108 Agricultural laborers 100 Agricultural industries 83 Social conditions 81 Food supply 68 Agricultural innovations 56 Economic policy 56 Commerce 53 Congresses 53 Environmental aspects 51 Produce trade 50 Agriculture, Cooperative 48 Periodicals 47 Government policy 46 Aspect économique 43 Farms, Small 39 Population 38 Politics and government 37 Agricultural credit 36 less ...