APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, Engs, R. F., Brooks, C. M., & Evans, J. S. (2007). Their patriotic duty: The Civil War letters of the Evans family of Brown County, Ohio. Fordham University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, Robert Francis Engs, Corey M. Brooks, ба Joseph S. Evans. Their Patriotic Duty: The Civil War Letters of the Evans Family of Brown County, Ohio. New York: Fordham University Press, 2007.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Their Patriotic Duty: The Civil War Letters of the Evans Family of Brown County, Ohio. Fordham University Press, 2007.