Oxford Reference Online
Brings together 100 language and subject dictionaries and reference works.
The World Book Online Reference Center includes encyclopedia and reference articles, photographs, maps, videos, animations and audio clips.
World Book Early World of Learning
Early World of Learning offers an interactive learning environment for children in preschool and early elementary grades, which includes resources to help them grasp critical early childhood themes while developing reading and oral language skills.
World Book Kids
The Student Discovery Encyclopedia includes learning activities, illustrations, diagrams and maps.
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