Skrabec, Q. R. (2008). William McKinley, apostle of protectionism. Algora Pub..
芝加哥风格引文Skrabec, Quentin R. William McKinley, Apostle of Protectionism. New York: Algora Pub., 2008.
MLA引文Skrabec, Quentin R. William McKinley, Apostle of Protectionism. Algora Pub., 2008.
警告：这些引文格式不一定是100％准确.