MLA

Simpson, Randolph Linsly, 1927-1992. Unknown printer Advertisement for Smith and Gaston, Funeral Directors, Birmingham, Alabama, Postcard in color. Box 25, folder 1036. circa 1935. https://collections.library.yale.edu/catalog/32312575.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 25, folder 1036"])(circa 1935)[Unknown printer Advertisement for Smith and Gaston, Funeral Directors, Birmingham, Alabama, Postcard in color]. https://collections.library.yale.edu/catalog/32312575.