MLA
H., Organ W. Notebook Written by W. H. Organ, Containing Some Accounts and Thoughts. Organ Served as Assistant Quartermaster of the 4th Tennessee Cavalry Regiment. Also Includes Six Receipts for Various Items Purchased by the Unit in Stanford, Kentucky. 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 40. https://digital.library.emory.edu/purl/3418kprs57-cor.
APA, 6th edition
H., O. W. (1862). Notebook written by W. H. Organ, containing some accounts and thoughts. Organ served as Assistant Quartermaster of the 4th Tennessee Cavalry Regiment. Also includes six receipts for various items purchased by the unit in Stanford, Kentucky (Box 5, Folder 40) [Diaries]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3418kprs57-cor.
Chicago
H., Organ W. “Notebook Written by W. H. Organ, Containing Some Accounts and Thoughts. Organ Served as Assistant Quartermaster of the 4th Tennessee Cavalry Regiment. Also Includes Six Receipts for Various Items Purchased by the Unit in Stanford, Kentucky.” Diaries. Civil War Collection, 1862. Box 5, Folder 40. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3418kprs57-cor.