MLA

Berghe, Ignatius Joseph van den, 1752-1824, artist, printmaker. [Trade card of Dr. Senate, maker of Lozenges of Steel, pharmacist] [graphic]. [1799]. https://collections.library.yale.edu/catalog/16830668.

APA, 6th edition

Berghe, Ignatius Joseph van den, 1752-1824, artist, printmaker. ([1799])[[Trade card of Dr. Senate, maker of Lozenges of Steel, pharmacist] [graphic]]. https://collections.library.yale.edu/catalog/16830668.