Bonnie Bader Who Was Alexander Graham Bell?-亚历山大·格雷厄姆·贝尔是谁？

作者：Bonnie Bader

书名：Who Was Alexander Graham Bell?《亚历山大·格雷厄姆·贝尔是谁？》

简介：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!