Bush. Lincoln in His Own Time. University of Iowa Press.
芝加哥风格引文Bush. Lincoln in His Own Time. University of Iowa Press.
MLA引文Bush. Lincoln in His Own Time. University of Iowa Press.
警告：这些引文格式不一定是100％准确.
APA引文
Bush. Lincoln in His Own Time. University of Iowa Press.
芝加哥风格引文Bush. Lincoln in His Own Time. University of Iowa Press.
MLA引文Bush. Lincoln in His Own Time. University of Iowa Press.