MLA

Office, United States. General Land. Map of the State of Nevada : to Accompany the Annual Report of the Commr. Genl. Land Office. General Land Office?], 1866. https://collections.library.yale.edu/catalog/15818525.

APA, 6th edition

Office, U. S. G. L. (1866). Map of the state of Nevada : to accompany the annual report of the Commr. Genl. Land Office. [Maps]. General Land Office?], https://collections.library.yale.edu/catalog/15818525.