Handbill. Two Views: Claude Lightfoot and Wright Palmer
MLA
Philadelphia Social Science Forum (Philadelphia, Pennsylvania). Handbill. Two Views: Claude Lightfoot and Wright Palmer. Box 1 | Folder 111. 1968 Feb. https://collections.library.yale.edu/catalog/2107096.
APA, 6th edition
Philadelphia Social Science Forum (Philadelphia, Pennsylvania). (["Box 1 | Folder 111"])(1968 Feb)[Handbill. Two Views: Claude Lightfoot and Wright Palmer]. https://collections.library.yale.edu/catalog/2107096.