Sustainable development 179 Desarrollo sostenible 140 Agricultura 94 Condiciones económicas 94 Economic conditions 94 Social conditions 91 Indians of Mexico 88 Indios de México 88 Traditional farming 88 Environmental aspects 17 Desarrollo sustentable 16 Sustainable agriculture 11 Economic development 10 Environmental policy 9 Agriculture 7 Aspectos ambientales 7 Ecology 6 Medio ambiente 6 Desarrollo 5 Desarrollo económico 5 Economic aspects 5 Environmental protection 5 Agricultural ecology 4 Business and Economics 4 City planning 4 Educación ambiental 4 Environmental education 4 Negocios y economía 4 Renewable energy sources 4 Research 4