MLA

From Strawberry Hill, the Tower [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16850847.

APA, 6th edition

From Strawberry Hill, the tower [art original]. (0 C.E.). [Ink drawings British 18th century, Wash drawings British 18th century, Annotations (Provenance) 18th century]. https://collections.library.yale.edu/catalog/16850847.