(1930). Allegheny Portage Railroad: Its place in the main line of public works of Pennsylvania : forerunner of the Pennsylvania Railroad. [Philadelphia, Pa.: Publicity Bureau, Pennsylvania Railroad].
Chicago Style CitationAllegheny Portage Railroad: Its Place in the Main Line of Public Works of Pennsylvania : Forerunner of the Pennsylvania Railroad. [Philadelphia, Pa.: Publicity Bureau, Pennsylvania Railroad], 1930.
MLA CitationAllegheny Portage Railroad: Its Place in the Main Line of Public Works of Pennsylvania : Forerunner of the Pennsylvania Railroad. [Philadelphia, Pa.: Publicity Bureau, Pennsylvania Railroad], 1930.