ebrary, Inc, Gallagher, G. W., & Shelden, R. A. (2012). A political nation: New directions in mid-nineteenth-century American political history. University of Virginia Press.
芝加哥风格引文ebrary, Inc, Gary W. Gallagher, 与 Rachel A. Shelden. A Political Nation: New Directions in Mid-nineteenth-century American Political History. Charlottesville: University of Virginia Press, 2012.
MLA引文ebrary, Inc, et al. A Political Nation: New Directions in Mid-nineteenth-century American Political History. University of Virginia Press, 2012.
警告：这些引文格式不一定是100％准确.