MLA

Office, United States. General Land. Map of the State of Florida : Showing the Progress of the Surveys Accompanying [the] Annual Report of [the] Commissioner. General Land Office, 1866. https://collections.library.yale.edu/catalog/15811388.

APA, 6th edition

Office, U. S. G. L. (1866). Map of the state of Florida : showing the progress of the surveys accompanying [the] annual report of [the] Commissioner. [Maps]. General Land Office, https://collections.library.yale.edu/catalog/15811388.