MLA

Hawkesworth, John, 1715?-1773. A dangerous shoal seen Septr. the 28, 1767 [cartographic material] : The south end of Mindanao ; Joseph Freewills Islands.. BRBL_00683. [1773]. https://collections.library.yale.edu/catalog/15825209.

APA, 6th edition

Hawkesworth, John, 1715?-1773. (["BRBL_00683"])([1773])[A dangerous shoal seen Septr. the 28, 1767 [cartographic material] : The south end of Mindanao ; Joseph Freewills Islands.]. https://collections.library.yale.edu/catalog/15825209.