MLA
Receipt Issued by W. W. Carnes to Captain John T. Champney, 24 Artillery Valises and Straps, 100 Halter Chains, 50 Army [Unknown]. 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 12. https://digital.library.emory.edu/purl/1504xgxf16-cor.
APA, 6th edition
Receipt issued by W. W. Carnes to Captain John T. Champney, 24 artillery valises and straps, 100 halter chains, 50 army [unknown] (Box 2, Folder 12). (1862). [Receipts (financial records)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1504xgxf16-cor.
Chicago
“Receipt Issued by W. W. Carnes to Captain John T. Champney, 24 Artillery Valises and Straps, 100 Halter Chains, 50 Army [Unknown].” Receipts (financial records). Civil War Collection, 1862. Box 2, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1504xgxf16-cor.