MLA

Güssefeld, F. L. (Franz Ludwig), 1744-1807. Borussiae occidentalis tabula. 1780.. https://collections.library.yale.edu/catalog/2065593.

APA, 6th edition

Güssefeld, F. L. (Franz Ludwig), 1744-1807. (1780.)[Borussiae occidentalis tabula]. https://collections.library.yale.edu/catalog/2065593.