[Half portrait sketch of woman in an oval frame]
MLA
[Half Portrait Sketch of Woman in an Oval Frame]. 0AD. https://collections.library.yale.edu/catalog/2033542.
APA, 6th edition
[Half portrait sketch of woman in an oval frame]. (0 C.E.). [Drawings, Sketchbooks]. https://collections.library.yale.edu/catalog/2033542.