MLA

Homann Erben (Firm), Homann, Johann Baptist, 1663-1724. Potentissimae Helvetiorum Reipublicae cantones tredecim cum foederatis et subjectis provinciis / exhibiti a Ioh. Baptista Homanno. 1732. https://collections.library.yale.edu/catalog/2065628.

APA, 6th edition

Homann Erben (Firm), & Homann, Johann Baptist, 1663-1724. (1732)[Potentissimae Helvetiorum Reipublicae cantones tredecim cum foederatis et subjectis provinciis / exhibiti a Ioh. Baptista Homanno]. https://collections.library.yale.edu/catalog/2065628.