Language (3) Infants (3) Humanities (3) Research (3) Science (3) Ciencias (3) Investigación (3) Recherche (3) Recherche (3) Sciences (3) Sciences humaines (3) Monde (3) cosmos (3) recherche (3) représentation (2) espèce animale (2) Economic conditions (2) Development (2) Philosophy (2) History (2) Law and legislation (2) Showing (2) Aesthetics (2) Methods (2) Sustainable development (2) Tools (2) Social classes (2) Signs and symbols (2) Short-term memory (2) Representative government and representation (2)