Cite

[Portrait of Maria Walpole] [art original].

MLA

Hoare, William, 1707-1792, artist. [Portrait of Maria Walpole] [art original].. [ca. 1742]. https://collections.library.yale.edu/catalog/15960105.

APA, 6th edition

Hoare, William, 1707-1792, artist. ([ca. 1742])[[Portrait of Maria Walpole] [art original].]. https://collections.library.yale.edu/catalog/15960105.