Cite

Sketch of the public surveys in the state of Minnesota.

MLA

General, United States. Surveyor. Sketch of the Public Surveys in the State of Minnesota. Surveyor General's Office, 1860. https://collections.library.yale.edu/catalog/15814597.

APA, 6th edition

General, U. S. S. (1860). Sketch of the public surveys in the state of Minnesota. [Maps]. Surveyor General's Office, https://collections.library.yale.edu/catalog/15814597.