Envelope
MLA
Chicago Defender Newspaper (Chcago, Illinois). Envelope. Box 1 | Folder 32. no date. https://collections.library.yale.edu/catalog/2107018.
APA, 6th edition
Chicago Defender Newspaper (Chcago, Illinois). (["Box 1 | Folder 32"])(no date)[Envelope]. https://collections.library.yale.edu/catalog/2107018.