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Encylcopædia Britannica Online

As the only online reference site created specifically for libraries, Britannica Online contains comprehensive content for everyone—from elementary students to college students, from business professionals to curious seniors. Extensive and thorough yet intuitive and fast, this powerful collection delivers trustworthy information that you need.
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This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.