Labor (3) Trabajo (3) Teaching (2) Ideology (2) Grammar, Comparative and general (2) Creation (2) Book industries and trade (2) Gramática (2) Estudio (2) Edición (2) Creación (2) Ideología (2) Ortografía (2) grammaire (2) Pérou (1) Vision (1) Time (1) Teleology (1) Spanish language (1) Spanish Americans (Latin America) (1) Science (1) Measurement (1) Linguistics (1) Language and languages (1) Knowledge, Theory of (1) Interest (1) History (1) Historiography (1) Fountains (1) Encyclopedias and dictionaries (1)