APA-ийн эшлэл(7 дахь хэвлэлт)

Richardson, H. C. (1997). The greatest nation of the earth: Republican economic policies during the Civil War. Harvard University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Richardson, Heather Cox. The Greatest Nation of the Earth: Republican Economic Policies During the Civil War. Cambridge, Mass.: Harvard University Press, 1997.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Richardson, Heather Cox. The Greatest Nation of the Earth: Republican Economic Policies During the Civil War. Harvard University Press, 1997.