Technology (2) Social sciences (2) Rate of return (2) Production (Economic theory) (2) Fountains (2) Citrus (2) Cítricos (Árboles) (2) Estudios (2) Fuentes (2) Ciencias sociales (2) Tecnología (2) Producción (2) Rentabilidad (2) production (2) Labor (1) Employees (1) Unemployment (1) Teleology (1) Research (1) Republics (1) Marketing (1) Manpower policy, Rural (1) Irrigation (1) Human capital (1) Costs, Industrial (1) Corn (1) Competition (1) Capital (1) Attachment and garnishment (1) Animals (1)