Perkins, D. (1956). Charles Evans Hughes and American democratic statesmanship ([1st ed.].). Little, Brown.
芝加哥风格引文Perkins, Dexter. Charles Evans Hughes and American Democratic Statesmanship. [1st ed.]. Boston: Little, Brown, 1956.
MLA引文Perkins, Dexter. Charles Evans Hughes and American Democratic Statesmanship. [1st ed.]. Little, Brown, 1956.
警告：这些引文格式不一定是100％准确.