MLA

Simpson, Randolph Linsly, 1927-1992. Unknown photographer Bust length oval vignette of middle aged woman, seated, chin on left knuckles. Carte de visite.. Box 11, folder 513. undated. https://collections.library.yale.edu/catalog/16189324.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 11, folder 513"])(undated)[Unknown photographer Bust length oval vignette of middle aged woman, seated, chin on left knuckles. Carte de visite.]. https://collections.library.yale.edu/catalog/16189324.