Cite

Portrait of Sr. Robert [art original].

MLA

Walpole, Edward, Sir, 1706-1784, printmaker. Portrait of Sr. Robert [art original].. [not after 1784]. https://collections.library.yale.edu/catalog/33207405.

APA, 6th edition

Walpole, Edward, Sir, 1706-1784, printmaker. ([not after 1784])[Portrait of Sr. Robert [art original].]. https://collections.library.yale.edu/catalog/33207405.