MLA

Ewicius, Hermann, 1597-1651, publisher. Patriae antiquae Inter Iuly et Caroli Magni : caesarum Romanorum tempora descriptio / Hewich inventor ; S. Saevery sculptor.. [approximately 1660]. https://collections.library.yale.edu/catalog/16691751.

APA, 6th edition

Ewicius, Hermann, 1597-1651, publisher. ([approximately 1660])[Patriae antiquae Inter Iuly et Caroli Magni : caesarum Romanorum tempora descriptio / Hewich inventor ; S. Saevery sculptor.]. https://collections.library.yale.edu/catalog/16691751.