Cite

[John Playfair] [graphic]

MLA

Nicholson, William, 1781-1844, printmaker. [John Playfair] [graphic]. [1819]. https://collections.library.yale.edu/catalog/10985816.

APA, 6th edition

Nicholson, William, 1781-1844, printmaker. ([1819])[[John Playfair] [graphic]]. https://collections.library.yale.edu/catalog/10985816.