MLA

Simpson, Randolph Linsly, 1927-1992. Elite Studio, Oskaloosa, IA Full length group portrait, three girls standing, facing front. Cabinet photograph. Box 9, folder 270. circa 1898. https://collections.library.yale.edu/catalog/2002322.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 270"])(circa 1898)[Elite Studio, Oskaloosa, IA Full length group portrait, three girls standing, facing front. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002322.