Cite

The shell seat at Horace Walpole's villa at Strawberry Hill [art original].

MLA

The Shell Seat at Horace Walpole's Villa at Strawberry Hill [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16192886.

APA, 6th edition

The shell seat at Horace Walpole's villa at Strawberry Hill [art original]. (0 C.E.). [Art collections, Wash drawings British 19th century]. https://collections.library.yale.edu/catalog/16192886.