MLA

Schenk, Peter, 1661-1711, cartographer. Superioris atque inferioris Alsatiae tabula perquam accurata et exacta proximis regionibus Iucunde huic insertis, annexisque / [cartographic material]. ca. 1700?]. https://collections.library.yale.edu/catalog/16618355.

APA, 6th edition

Schenk, Peter, 1661-1711, cartographer. (ca. 1700?])[Superioris atque inferioris Alsatiae tabula perquam accurata et exacta proximis regionibus Iucunde huic insertis, annexisque / [cartographic material]]. https://collections.library.yale.edu/catalog/16618355.