Cite

[A fox dog examining a strong box].

MLA

Sayer, Robert, 1725-1794, artist. [A fox dog examining a strong box].. [approximately February, 1787]. https://collections.library.yale.edu/catalog/10728257.

APA, 6th edition

Sayer, Robert, 1725-1794, artist. ([approximately February, 1787])[[A fox dog examining a strong box].]. https://collections.library.yale.edu/catalog/10728257.