MLA
Union Patriotic Envelopes - "De Fowler Caught in His Own Snare.". 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 21, Folder 9. https://digital.library.emory.edu/purl/392g79cpvr-cor.
APA, 6th edition
Union patriotic envelopes - "De fowler caught in his own snare." (Box 21, Folder 9). (1861). [Envelopes]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cpvr-cor.
Chicago
“Union Patriotic Envelopes - ‘De Fowler Caught in His Own Snare.".” Envelopes. Civil War Collection, 1861. Box 21, Folder 9. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cpvr-cor.