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  • Questions and Answers Inventions: How? Why? Where? When?

    Louise Spilsbury

    Hardcover (Parragon Inc, Oct. 1, 2007)
    Answers questions about inventions and innovations related to farming, construction, energy, manufacturing, transportation, navigation, space, weapons, medicine, time, communications, and entertainment.
    V

  • Questions and Answers: Inventions

    Wendy Madgwick

    Paperback (Demco Media, Feb. 1, 2002)
    Questions and answers explore the world of inventions and their effects on daily life.
    R