MLA

Bunbury, Henry, Sir, 1778-1860, artist. Night [art original].. [approximately 1794]. https://collections.library.yale.edu/catalog/10977957.

APA, 6th edition

Bunbury, Henry, Sir, 1778-1860, artist. ([approximately 1794])[Night [art original].]. https://collections.library.yale.edu/catalog/10977957.