Demana, F. (1997). Precalculus: A graphing approach (4th ed.). Addison-Wesley.
芝加哥风格引文Demana, Franklin. Precalculus: A Graphing Approach. 4th ed. Menlo Park, California: Addison-Wesley, 1997.
MLA引文Demana, Franklin. Precalculus: A Graphing Approach. 4th ed. Addison-Wesley, 1997.
警告：这些引文格式不一定是100％准确.