MLA

J. S., gent. The History of the Turkish War with the Germans and Poles, or, An Exact Account of the State of the Present War, in Hungary, Austria, Croatia, Moravia and Silesia ... / by J.S. Gent. Printed for William Whitwood, next to the Crown tavern in Duck lane, 1684. https://collections.library.yale.edu/catalog/2057360.

APA, 6th edition

J. S., gent. (1684). The history of the Turkish war with the Germans and Poles, or, An exact account of the state of the present war, in Hungary, Austria, Croatia, Moravia and Silesia ... / by J.S. gent [Engravings, Frontispieces (Illustrations), Historiography, Marginalia]. Printed for William Whitwood, next to the Crown tavern in Duck lane. https://collections.library.yale.edu/catalog/2057360.