Bob Pflugfelder

Books by Bob Pflugfelder

Bob Pflugfelder, Steve Hockensmith: Nick and Tesla's Solar-Powered Showdown: A Mystery with Sun-Powered Gadgets You Can Build Yourself (Hardcover, 2016, Quirk Books)

Nick and Tesla's Solar-Powered Showdown: A Mystery with Sun-Powered Gadgets You Can Build Yourself

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