Lederer, E. M. (2004). Linear algebra exam file. Kaplan AEC Education.
芝加哥风格引文Lederer, Eric M. Linear Algebra Exam File. Chicago, Ill: Kaplan AEC Education, 2004.
MLA引文Lederer, Eric M. Linear Algebra Exam File. Kaplan AEC Education, 2004.
警告：这些引文格式不一定是100％准确.