MLA

Sotzmann, D. F. Maine. Bey Carl Ernst Bohn, 1798. https://collections.library.yale.edu/catalog/10563615.

APA, 6th edition

Sotzmann, D. F. (1798). Maine [Maps, Early works to 1800]. Bey Carl Ernst Bohn. https://collections.library.yale.edu/catalog/10563615.