Kay, D. C. (1994). College geometry: A discovery approach. HarperCollins College Publishers.
芝加哥风格引文Kay, David C. College Geometry: A Discovery Approach. New York: HarperCollins College Publishers, 1994.
MLA引文Kay, David C. College Geometry: A Discovery Approach. HarperCollins College Publishers, 1994.
警告：这些引文格式不一定是100％准确.