MLA
Upham, Samuel C. (Samuel Curtis), 1819-1885. Union patriotic envelope with Winfield Scott cartoon - "Gen. Scott about making a ten strike", published by S. C. Upham. 1861. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/088qbzkj61-cor.
APA, 6th edition
Upham, Samuel C. (Samuel Curtis), 1819-1885. (1861)[Union patriotic envelope with Winfield Scott cartoon - "Gen. Scott about making a ten strike", published by S. C. Upham]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/088qbzkj61-cor.
Chicago
Upham, Samuel C. (Samuel Curtis), 1819-1885, Union patriotic envelope with Winfield Scott cartoon - "Gen. Scott about making a ten strike", published by S. C. Upham, 1861, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/088qbzkj61-cor.