MLA

Simpson, Randolph Linsly, 1927-1992. Studio unknown Full length portrait, man in white jack et and apron holding small tray with decanter and two glasses with liquid. Tintype, paper cased, sixth plate. Box 7, folder 130. circa 1890. https://collections.library.yale.edu/catalog/2002186.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 7, folder 130"])(circa 1890)[Studio unknown Full length portrait, man in white jack et and apron holding small tray with decanter and two glasses with liquid. Tintype, paper cased, sixth plate]. https://collections.library.yale.edu/catalog/2002186.