Klein, W. A. (2006). Federal income taxation (Fourteenth edition.). ASPEN Publishers.
芝加哥风格引文Klein, William A. Federal Income Taxation. Fourteenth edition. New York: ASPEN Publishers, 2006.
MLA引文Klein, William A. Federal Income Taxation. Fourteenth edition. ASPEN Publishers, 2006.
警告：这些引文格式不一定是100％准确.