MLA

Simpson, Randolph Linsly, 1927-1992. G. lith de Delpech "Toussaint L'Ouverture", oval bust lithograph, 10 x 6-3/4. Box 36, folder 1098. 1830. https://collections.library.yale.edu/catalog/2057498.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 36, folder 1098"])(1830)[G. lith de Delpech "Toussaint L'Ouverture", oval bust lithograph, 10 x 6-3/4]. https://collections.library.yale.edu/catalog/2057498.