MLA

Dunn, Samuel, d. 1794. A map of the British Empire, in North America / by Samuel Dunn, mathematician, improved from the surveys of Capt. Carver.. BRBL_00687. https://collections.library.yale.edu/catalog/15825289.

APA, 6th edition

Dunn, Samuel, d. 1794. (["BRBL_00687"])[A map of the British Empire, in North America / by Samuel Dunn, mathematician, improved from the surveys of Capt. Carver.]. https://collections.library.yale.edu/catalog/15825289.