MLA

Torrey, Jason, 1772-1848. A map of Wayne & Pike counties, Pennsylvania [cartographic material] : shewing the situations & forms of the warrantee tracts, with the numbers by which the respective tracts are distinguished in the maps & books in the Office of the Commissioners of plac. BRBL_00501. 1814. https://collections.library.yale.edu/catalog/15811140.

APA, 6th edition

Torrey, Jason, 1772-1848. (["BRBL_00501"])(1814)[A map of Wayne & Pike counties, Pennsylvania [cartographic material] : shewing the situations & forms of the warrantee tracts, with the numbers by which the respective tracts are distinguished in the maps & books in the Office of the Commissioners of plac]. https://collections.library.yale.edu/catalog/15811140.