Cite

[Portrait of George Robins sitting at a table] [art original]

MLA

Bell, E., and artist. [Portrait of George Robins Sitting at a Table] [Art Original]. 0AD. https://collections.library.yale.edu/catalog/17469290.

APA, 6th edition

Bell, E., & artist. (0 C.E.). [Portrait of George Robins sitting at a table] [art original] [Portrait drawings, Watercolors]. https://collections.library.yale.edu/catalog/17469290.