MLA

Simpson, Randolph Linsly, 1927-1992. Studio unknown Full length family portrait; two ladies, both wearing elaborate hats; one man and one boy, both holding hats, grouped around pedestal. Tintype half plate. Box 8, folder 148. circa 1885. https://collections.library.yale.edu/catalog/2002192.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 8, folder 148"])(circa 1885)[Studio unknown Full length family portrait; two ladies, both wearing elaborate hats; one man and one boy, both holding hats, grouped around pedestal. Tintype half plate]. https://collections.library.yale.edu/catalog/2002192.