Programs and brochures
MLA
O'Neill, Eugene, 1888-1953. Programs and brochures. Box 39, folder 860-862. 1933-59, n.d.. https://collections.library.yale.edu/catalog/2018642.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 39, folder 860-862"])(1933-59, n.d.)[Programs and brochures]. https://collections.library.yale.edu/catalog/2018642.