Post route map of the territory of Dakota with adjacent parts of Montana, Wyoming, Nebraska, Iowa and Minnesota : and portions of the Dominion of Canada, showing post offices with the intermediate distances between them and mail routes in operation on 1st
MLA
Dept, United States. Post Office. Post Route Map of the Territory of Dakota with Adjacent Parts of Montana, Wyoming, Nebraska, Iowa and Minnesota : and Portions of the Dominion of Canada, Showing Post Offices with the Intermediate Distances between Them and Mail Routes in Operation on 1st. U.S. Post Office Dept., 1883. https://collections.library.yale.edu/catalog/15814725.
APA, 6th edition
Dept, U. S. P. O. (1883). Post route map of the territory of Dakota with adjacent parts of Montana, Wyoming, Nebraska, Iowa and Minnesota : and portions of the Dominion of Canada, showing post offices with the intermediate distances between them and mail routes in operation on 1st [Maps]. U.S. Post Office Dept., https://collections.library.yale.edu/catalog/15814725.
