所有的资料，只要标签是 'electricity'

著者： United States. Reclamation Bureau.

著者： General Electric Company.

著者： United States. Bureau of Reclamation.;

著者： General Electric Company.; General Electric Company. Publicity Dept.;

著者： International Standard Electric Corporation (New York, N.Y.); International Telephone and Telegraph Corporation.;

著者： Sylvania Electric Products, Inc.;