MLA

Cary, John, approximately 1754-1835, cartographer. A new map of Piedmont, the duchies of Savoy and Milan, and the republic of Genoa, with their subdivisions : from the latest authorities / by John Cary.. BRBL_00233. https://collections.library.yale.edu/catalog/15763375.

APA, 6th edition

Cary, John, approximately 1754-1835, cartographer. (["BRBL_00233"])[A new map of Piedmont, the duchies of Savoy and Milan, and the republic of Genoa, with their subdivisions : from the latest authorities / by John Cary.]. https://collections.library.yale.edu/catalog/15763375.