Books

1. Discovering the Essential Universe, Second Edition
   

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2. Astronomy for All Ages, 2nd : Discovering the Universe through Activities for Children and Adults
   

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3. Russian Spacesuits (Springer Praxis Books / Space Exploration)
   

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4. Foundations of Astronomy (with InfoTrac and CD-ROM)
   

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5. The Monthly Sky Guide (Monthly Sky Guide)
   

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Books