MLA

Sotzmann, D. F. New Jersey / Entworfen Von D.F. Sotzmann. Bey Carl Ernst Bohn, 1797. https://collections.library.yale.edu/catalog/15825338.

APA, 6th edition

Sotzmann, D. F. (1797). New Jersey / entworfen von D.F. Sotzmann. [Maps]. Bey Carl Ernst Bohn, https://collections.library.yale.edu/catalog/15825338.