2026 Reading Challenge

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Are you David Ritchie, author of the books below?
Ufo by David Ritchie The Computer Pioneers by David Ritchie Connecticut Off the Beaten Path by David Ritchie Spacewar by David Ritchie Comets by David Ritchie Health and Medicine by David Ritchie Shipwrecks by David Ritchie Super Quake by David Ritchie Boot Hill Module Ballots and Bullets by David Ritchie Encyclopedia of Earthquakes And Volcanoes by Alexander E. Gates


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