Long, C. D. (1960). Wages and earnings in the United States, 1860-1890. Princeton University Press.
芝加哥风格引文Long, Clarence D. Wages and Earnings in the United States, 1860-1890. Princeton: Princeton University Press, 1960.
MLA引文Long, Clarence D. Wages and Earnings in the United States, 1860-1890. Princeton University Press, 1960.
警告：这些引文格式不一定是100％准确.