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Try one of these databases:
| Access Science |
The McGraw-Hill Encyclopedia of Science & Technology on the Web. Online Help |
World Book Encyclopedia Universal en Español |
La más comprensiva enciclopedia en español, de la World Book Encyclopædia, con más de 47,000 articulos, 8,300 fotos, tablas, mapas, banderas, e imágenes; un diccionario con 65, 000 palabras; un atlas del mundo detallando los países, las mapas, las estadísticas, las ciudades mayores, la distribución de lad idiomas y las religiones del mundo; y la cronología de los eventos importantes de la historia en una forma gráfica.
The most comprehensive encyclopedia in the Spanish language, from World Book Encyclopędia, with over 47,000 articles; 8,300 photos, tables, maps, flags, and images; a dictionary with 65,000 entries; a world atlas detaling countries, maps, statistics, major world cities, and distribution of languages and religions; and timelines that show the events of the past in rich graphical form. Help | Ayuda |
| WorlBook Encyclopedia Online |
Includes all of the text of the print set, plus thousands of additional articles, digital images, Internet links, and more. Search Tips & Advice |
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