MLA

Williams, Edith Clifford. Edith Clifford Williams Artwork. 1895. https://collections.library.yale.edu/catalog/2005286.

APA, 6th edition

Williams, E. C. (1895). Edith Clifford Williams artwork [Drawings (visual works), Paintings, Sketchbooks, Sketches]. https://collections.library.yale.edu/catalog/2005286.