APA引文

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

芝加哥风格引文

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

MLA引文

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