APA-referens (7:e uppl.)
Marrs, A. W. (2009). Railroads in the Old South: Pursuing Progress in a Slave Society. Johns Hopkins University Press.
Chicago-referens (17:e uppl.)
Marrs, Aaron W. Railroads in the Old South: Pursuing Progress in a Slave Society. Baltimore: Johns Hopkins University Press, 2009.
MLA-referens (9:e uppl.)
Marrs, Aaron W. Railroads in the Old South: Pursuing Progress in a Slave Society. Johns Hopkins University Press, 2009.
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