"C" General
MLA
Lewis, Sinclair, 1885-1951. "C" General. Box 46, folder 464. 1907-1947. https://collections.library.yale.edu/catalog/10172269.
APA, 6th edition
Lewis, Sinclair, 1885-1951. (["Box 46, folder 464"])(1907-1947)["C" General]. https://collections.library.yale.edu/catalog/10172269.