MLA

Simpson, Randolph Linsly, 1927-1992. J. Rennie Smith, Newark, NJ Three quarter length formal portrait of man, seated wearing checked trousers. Carte de visite. Box 11, folder 474. circa 1870. https://collections.library.yale.edu/catalog/2003947.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 11, folder 474"])(circa 1870)[J. Rennie Smith, Newark, NJ Three quarter length formal portrait of man, seated wearing checked trousers. Carte de visite]. https://collections.library.yale.edu/catalog/2003947.