Cite

Portrait of Sr. Robert Walpole [art original]

MLA

Walpole, Edward, Sir, 1706-1784, printmaker. Portrait of Sr. Robert Walpole [art original]. [not after 1784]. https://collections.library.yale.edu/catalog/33207403.

APA, 6th edition

Walpole, Edward, Sir, 1706-1784, printmaker. ([not after 1784])[Portrait of Sr. Robert Walpole [art original]]. https://collections.library.yale.edu/catalog/33207403.