Cite

Official map of Dakota / issued by the Department of Immigration and Statistics.

MLA

McNally, Rand, and Company. Official Map of Dakota / Issued by the Department of Immigration and Statistics. Office of the Commissioner of Immigration?, 1889. https://collections.library.yale.edu/catalog/15814724.

APA, 6th edition

McNally, R., & C. (1889). Official map of Dakota / issued by the Department of Immigration and Statistics. [Maps]. Office of the Commissioner of Immigration?, https://collections.library.yale.edu/catalog/15814724.