Bettinger, A. K. A Modern approach to algebra and trigonometry.
芝加哥风格引文Bettinger, Alvin K. A Modern Approach to Algebra and Trigonometry.
MLA引文Bettinger, Alvin K. A Modern Approach to Algebra and Trigonometry.
警告：这些引文格式不一定是100％准确.
APA引文