MLA
Insurance, American Life, and Trust Company. Blank Request Form for Slave Insurance, Offered by American Life Insurance and Trust Company. 1850. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 23, Folder 1. https://digital.library.emory.edu/purl/392g79cq1s-cor.
APA, 6th edition
Insurance, A. L., & Company, T. (1850). Blank request form for slave insurance, offered by American Life Insurance and Trust Company (Box 23, Folder 1) [Insurance policies]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cq1s-cor.
Chicago
Insurance, American Life, and Trust Company. “Blank Request Form for Slave Insurance, Offered by American Life Insurance and Trust Company.” Insurance policies. Civil War Collection, 1850. Box 23, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cq1s-cor.