MLA

Simpson, Randolph Linsly, 1927-1992. Alfred S. Campbell, Elizabeth, NJ Identification stamped recto. Verso, in ink, "785 Negro Fight." Stereograph, ivory card. Box 12, folder 586. 1896. https://collections.library.yale.edu/catalog/10257579.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 12, folder 586"])(1896)[Alfred S. Campbell, Elizabeth, NJ Identification stamped recto. Verso, in ink, "785 Negro Fight." Stereograph, ivory card]. https://collections.library.yale.edu/catalog/10257579.