MLA

Simpson, Randolph Linsly, 1927-1992. N.D. Morgan, Photographic Artist, Rockwell Building, 166 Main Street, Norwich, CT Full length portrait, young lady standing by chair, plaid dress. Ferrotype, Carte de visite. Box 11, folder 400. circa 1870. https://collections.library.yale.edu/catalog/2003902.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 11, folder 400"])(circa 1870)[N.D. Morgan, Photographic Artist, Rockwell Building, 166 Main Street, Norwich, CT Full length portrait, young lady standing by chair, plaid dress. Ferrotype, Carte de visite]. https://collections.library.yale.edu/catalog/2003902.