Cite

Letter to General Curtis. "Private." September 13, 1862. 1 p. Certified, a true copy. T. I. McKenny.

MLA

Curtis, Samuel Ryan, 1805-1866. Letter to General Curtis. "Private." September 13, 1862. 1 p. Certified, a true copy. T. I. McKenny.. Box 1, folder 3. 1846-1866. https://collections.library.yale.edu/catalog/14462283.

APA, 6th edition

Curtis, Samuel Ryan, 1805-1866. (["Box 1, folder 3"])(1846-1866)[Letter to General Curtis. "Private." September 13, 1862. 1 p. Certified, a true copy. T. I. McKenny.]. https://collections.library.yale.edu/catalog/14462283.