Commager, H. S. (1948). America in perspective (Abridged ed.). New Amer. Lib..
芝加哥风格引文Commager, Henry Steele. America in Perspective. Abridged ed. N.Y.: New Amer. Lib., 1948.
MLA引文Commager, Henry Steele. America in Perspective. Abridged ed. New Amer. Lib., 1948.
警告：这些引文格式不一定是100％准确.