Proceedings of the American Electric Railway Engineering Association ... containing a complete report of the ... Annual Convention, held at .. (1911)
American Electric Railway Engineering Association. Convention, American Electric Railway Association · New York, N.Y. : American Electric Railway Association · leaf 667
Report of Committee on Heavy Electric Traction 583 … Fig. 30. Berne-Lotschberg Railway. Fig. 31. Simplon Tunnel Railway.
American Electric Railway Engineering Association · Electric railroads · Street-railroads
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
