MLA

Gay, Walter, 1856-1937, artist. [La Cheminée] [art original].. [not before 1937]. https://collections.library.yale.edu/catalog/16835236.

APA, 6th edition

Gay, Walter, 1856-1937, artist. ([not before 1937])[[La Cheminée] [art original].]. https://collections.library.yale.edu/catalog/16835236.