Croly, H. D. (1965). The promise of American life. Bobbs-Merrill.
芝加哥风格引文Croly, Herbert David. The Promise of American Life. Indianapolis: Bobbs-Merrill, 1965.
MLA引文Croly, Herbert David. The Promise of American Life. Bobbs-Merrill, 1965.
警告：这些引文格式不一定是100％准确.