APA Citation
Pennsylvania Railroad. The Pennsylvania Railroad to the World's Fair, St. Louis, Mo. [Philadelphia?: Allen, Lane & Scott, printers. Retrieved from https://doi.org/10.5479/sil.777388.39088011385317
MLA Citation
Pennsylvania Railroad. The Pennsylvania Railroad to the World's Fair, St. Louis, Mo. 3rd ed., , [Philadelphia?: Allen, Lane & Scott, printers, https://doi.org/10.5479/sil.777388.39088011385317
Chicago
Pennsylvania Railroad. The Pennsylvania Railroad to the World's Fair, St. Louis, Mo. [Philadelphia?: Allen, Lane & Scott, printers, doi: https://doi.org/10.5479/sil.777388.39088011385317
Warning: These citations may not always be complete (especially for serials).