APA-ийн эшлэл(7 дахь хэвлэлт)

Marrs, A. W. (2009). Railroads in the Old South: Pursuing progress in a slave society. Johns Hopkins University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Marrs, Aaron W. Railroads in the Old South: Pursuing Progress in a Slave Society. Baltimore: Johns Hopkins University Press, 2009.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Marrs, Aaron W. Railroads in the Old South: Pursuing Progress in a Slave Society. Johns Hopkins University Press, 2009.