MLA

Simpson, Randolph Linsly, 1927-1992. Lloyd, Troy, NY Full length portrait of a lady standing with arms folded in front of her, left elbow and right hand on elaborate chair back to her left. Imperial cabinet photograph. Box 10, folder 305. circa 1890. https://collections.library.yale.edu/catalog/2002335.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 10, folder 305"])(circa 1890)[Lloyd, Troy, NY Full length portrait of a lady standing with arms folded in front of her, left elbow and right hand on elaborate chair back to her left. Imperial cabinet photograph]. https://collections.library.yale.edu/catalog/2002335.