MLA

Homann, Johann Baptist, 1663-1724. Circulus Saxoniae inferioris in omnes suos status et principatus / [cartographic material] / accurate divisus ex conatibus Io. Bapt. Homanni. 1715?. https://collections.library.yale.edu/catalog/2065697.

APA, 6th edition

Homann, Johann Baptist, 1663-1724. (1715?)[Circulus Saxoniae inferioris in omnes suos status et principatus / [cartographic material] / accurate divisus ex conatibus Io. Bapt. Homanni]. https://collections.library.yale.edu/catalog/2065697.