Cite

Map of the Northern Pacific Railroad and tributary country.

MLA

Company, National Railway Publication. Map of the Northern Pacific Railroad and Tributary Country. National Railway Publication Co., 0AD. https://collections.library.yale.edu/catalog/15535381.

APA, 6th edition

Company, N. R. P. (0 C.E.). Map of the Northern Pacific Railroad and tributary country. [Maps]. National Railway Publication Co., https://collections.library.yale.edu/catalog/15535381.