MLA

Jefferys, Thomas, -1771, cartographer. The coast of West Florida and Louisiana : the Peninsula and Gulf of Florida or Channel of Bahama with the Bahama Islands / by Thos. Jefferys .... BRBL_00730. 20 Feby. 1775.. https://collections.library.yale.edu/catalog/15830813.

APA, 6th edition

Jefferys, Thomas, -1771, cartographer. (["BRBL_00730"])(20 Feby. 1775.)[The coast of West Florida and Louisiana : the Peninsula and Gulf of Florida or Channel of Bahama with the Bahama Islands / by Thos. Jefferys ...]. https://collections.library.yale.edu/catalog/15830813.