MLA

Tanner, Henry Schenck, 1786-1858. A map of the United States of Mexico : as organized and defined by the several acts of the congress of that republic / constructed from a great variety of printed and manuscript documents by H.S. Tanner.. BRBL_00645. 1847. https://collections.library.yale.edu/catalog/15822276.

APA, 6th edition

Tanner, Henry Schenck, 1786-1858. (["BRBL_00645"])(1847)[A map of the United States of Mexico : as organized and defined by the several acts of the congress of that republic / constructed from a great variety of printed and manuscript documents by H.S. Tanner.]. https://collections.library.yale.edu/catalog/15822276.