MLA

Simpson, Randolph Linsly, 1927-1992. Falk, 949 Broadway, NY Bust length portrait of Henry Ward Beecher, preacher and abolitionist. Cabinet photograph. Box 9, folder 289. circa 1875. https://collections.library.yale.edu/catalog/2002348.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 289"])(circa 1875)[Falk, 949 Broadway, NY Bust length portrait of Henry Ward Beecher, preacher and abolitionist. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002348.