"Bob, Inc." calendar
MLA
O'Neill, Eugene, 1888-1953. "Bob, Inc." calendar. Box 87, folder 1514. 1955. https://collections.library.yale.edu/catalog/10254394.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 87, folder 1514"])(1955)["Bob, Inc." calendar]. https://collections.library.yale.edu/catalog/10254394.