Geography (6) Geografía (6) Philosophy (4) Filosofía (4) Research (2) Estudios (2) Investigación (2) Colombie (1) Grenade (1) Globalization (1) Environmental economics (1) Sustainable development (1) Women scientists (1) Weights and measures (1) Water use (1) Groundwater (1) Water (1) Vision (1) Trials (1) Success (1) Spring (1) Shopping centers (1) Sharecropping (1) Serfdom (1) Scientists (1) Production (Economic theory) (1) Peasants (1) Leisure (1) Learning, Psychology of (1) Land tenure (1)