Cite

[Portrait of Horatio Walpole, Lord Walpole of Wolterton] [art original].

MLA

Vanloo, Jean-Baptiste, 1684-1745, attributed name. [Portrait of Horatio Walpole, Lord Walpole of Wolterton] [art original].. [1728?]. https://collections.library.yale.edu/catalog/33109739.

APA, 6th edition

Vanloo, Jean-Baptiste, 1684-1745, attributed name. ([1728?])[[Portrait of Horatio Walpole, Lord Walpole of Wolterton] [art original].]. https://collections.library.yale.edu/catalog/33109739.