Cohen, D. (1993). Algebra and trigonometry (3rd ed.). West Pub. Co..
芝加哥风格引文Cohen, David. Algebra and Trigonometry. 3rd ed. Minneapolis/St. Paul: West Pub. Co., 1993.
MLA引文Cohen, David. Algebra and Trigonometry. 3rd ed. West Pub. Co., 1993.
警告：这些引文格式不一定是100％准确.