Sacks, M. S. (2006). Before Harlem: The Black experience in New York City before World War I. University of Pennsylvania Press.
芝加哥风格引文Sacks, Marcy S. Before Harlem: The Black Experience in New York City Before World War I. Philadelphia: University of Pennsylvania Press, 2006.
MLA引文Sacks, Marcy S. Before Harlem: The Black Experience in New York City Before World War I. University of Pennsylvania Press, 2006.
警告：这些引文格式不一定是100％准确.