LaFeber, W. (1989). The American age: United States foreign policy at home and abroad since 1750. Norton.
芝加哥风格引文LaFeber, Walter. The American Age: United States Foreign Policy at Home and Abroad Since 1750. New York: Norton, 1989.
MLA引文LaFeber, Walter. The American Age: United States Foreign Policy at Home and Abroad Since 1750. Norton, 1989.
警告：这些引文格式不一定是100％准确.