The Northern Pacific Railroad
[electronic resource] :
its route, resources, progress and business : the new northwest and its great thoroughfare.

APA Citation

Northern Pacific Railroad Co. (1871). The Northern Pacific Railroad: its route, resources, progress and business : the new northwest and its great thoroughfare. [Philadelphia?]: J. Cooke.

MLA Citation

Northern Pacific Railroad Co. The Northern Pacific Railroad: Its Route, Resources, Progress And Business : the New Northwest And Its Great Thoroughfare. [Philadelphia?]: J. Cooke, 1871.

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