Iron highway bridges :
as built by the Penn Bridge Company.

APA Citation

Penn Bridge Company (Beaver Falls, P. (1886). Iron highway bridges: as built by the Penn Bridge Company. [Beaver Falls, Pa.: The Co..

MLA Citation

Penn Bridge Company (Beaver Falls, Pa.). Iron Highway Bridges: As Built by the Penn Bridge Company. [Beaver Falls, Pa.: The Co., 1886.

Warning: These citations may not always be complete (especially for serials).