(MONTANA) Roberts, E. J. Montana Extension. The Saint Paul, Minneapolis and Manitoba Ry. Co. Scale 12 miles to 1 inch. Colored inks on oil cloth, 20-1/2 x 65". (Map 33)
MLA
Company, Northern Pacific Railway. (MONTANA) Roberts, E. J. Montana Extension. The Saint Paul, Minneapolis and Manitoba Ry. Co. Scale 12 Miles to 1 Inch. Colored Inks on Oil Cloth, 20-1/2 x 65". (Map 33). 1887. https://collections.library.yale.edu/catalog/2016956.
APA, 6th edition
Company, N. P. R. (1887). (MONTANA) Roberts, E. J. Montana Extension. The Saint Paul, Minneapolis and Manitoba Ry. Co. Scale 12 miles to 1 inch. Colored inks on oil cloth, 20-1/2 x 65". (Map 33). https://collections.library.yale.edu/catalog/2016956.
