Gager, W. A. (1968). Contemporary college algebra and trigonometry. Macmillan Company.
芝加哥风格引文Gager, William A. Contemporary College Algebra and Trigonometry. New York: Macmillan Company, 1968.
MLA引文Gager, William A. Contemporary College Algebra and Trigonometry. Macmillan Company, 1968.
警告：这些引文格式不一定是100％准确.