Cite

[Man and woman on patio] [art original].

MLA

Acheson, Alice, and artist. [Man and Woman on Patio] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16835241.

APA, 6th edition

Acheson, A., & artist. (0 C.E.). [Man and woman on patio] [art original]. [Paintings American 20th century]. https://collections.library.yale.edu/catalog/16835241.