Leaflet.
MLA
National Day for Black Unity Against the War in Vietnam (New York, New York). Leaflet.. Box 1 | Folder 93. 1968 May 19-20. https://collections.library.yale.edu/catalog/2107078.
APA, 6th edition
National Day for Black Unity Against the War in Vietnam (New York, New York). (["Box 1 | Folder 93"])(1968 May 19-20)[Leaflet.]. https://collections.library.yale.edu/catalog/2107078.