Who Was Alexander Graham Bell by Bonnie Bader David Groff (z-lib.org)

書籍內容簡介

Did you know that Bell's amazing invention—the telephone—stemmed from his work on teaching the deaf? Both his mother and wife were deaf. Or, did you know that in later years he refused to have a telephone in his study? Bell's story will fascinate young readers interested in the early history of modern technology!