Cite

It is the shortest, quickest and best route : and the fare is always as low as the lowest

MLA

Company, Northern Pacific Railroad. It Is the Shortest, Quickest and Best Route : and the Fare Is Always as Low as the Lowest. Rand, McNally & Co., Printers, 1879. https://collections.library.yale.edu/catalog/2029893.

APA, 6th edition

Company, N. P. R. (1879). It is the shortest, quickest and best route : and the fare is always as low as the lowest [Ephemera, Maps, Pamphlets]. Rand, McNally & Co., Printers. https://collections.library.yale.edu/catalog/2029893.