Social Studies
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21st Century Basic Skills Library
Series of 132 titles
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21st Century Basic Skills Library: Level 3
Series of 51 titles
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21st Century Science
Series of 6 titles
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A Girl's Guide
Series of 8 titles
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A Look at Your Government
Series of 6 titles
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Active Citizenship Today
Series of 6 titles
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Agents of Government
Series of 6 titles
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Alien Encounters
Series of 4 titles
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All About Money
Series of 12 titles
