Books about Space flight -- Juvenile fiction (sorted by popularity)
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Displaying results 1–4
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Rip Foster Rides the Gray Planet Harold L. Goodwin 112 downloads
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Young Visitor to Mars Richard M. Elam 77 downloads
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Rip Foster in Ride the Gray Planet Harold L. Goodwin 76 downloads
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The Planet Mappers E. Everett Evans 57 downloads
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Displaying results 1–4