Cite

Mr. Walpole's at Twickenham [art original].

MLA

Mr. Walpole's at Twickenham [Art Original]. 0AD. https://collections.library.yale.edu/catalog/11019089.

APA, 6th edition

Mr. Walpole's at Twickenham [art original]. (0 C.E.). [Views, Watercolors British 18th century, Amateur works]. https://collections.library.yale.edu/catalog/11019089.