Ernest. Douglass in His Own Time. University of Iowa Press.
芝加哥风格引文Ernest. Douglass in His Own Time. University of Iowa Press.
MLA引文Ernest. Douglass 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
Ernest. Douglass in His Own Time. University of Iowa Press.
芝加哥风格引文Ernest. Douglass in His Own Time. University of Iowa Press.
MLA引文Ernest. Douglass in His Own Time. University of Iowa Press.