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Thomas Edison
by Carmel Reilly 1st ed.. Thomson Nelson, 2007 書
1st ed.. Thomson Nelson, 2007 電子資源
Philo Farsnworth and the Television
by Ellen Strum Niz 1st ed.. Capstone, 2007 書
Alexander Graham Bell and the Telephone
by Jennifer Fandel 1st ed.. Capstone, 2007 書
Thomas Edison : The Great Inventor
written by Caryn Jenner 1st ed.. DK Publishing, 2007 書
Thomas Edison and the Lightbulb
by Scott Welvaert 1st ed.. Capstone, 2007 書
Samuel Morse and the Telegraph
by David Seidman 1st ed.. Capstone, 2007 書
