Ton [graphic]
MLA
Seymour, Robert, 1798-1836, printmaker. Ton [graphic]. [1828?]. https://collections.library.yale.edu/catalog/15808702.
APA, 6th edition
Seymour, Robert, 1798-1836, printmaker. ([1828?])[Ton [graphic]]. https://collections.library.yale.edu/catalog/15808702.