Peatman. The Long Shadow of Lincoln's Gettysburg Address. Southern Illinois University Press.
芝加哥风格引文Peatman. The Long Shadow of Lincoln's Gettysburg Address. Southern Illinois University Press.
MLA引文Peatman. The Long Shadow of Lincoln's Gettysburg Address. Southern Illinois University Press.
警告：这些引文格式不一定是100％准确.