Irving, R. (2013). Beyond the quadratic formula. Mathematical Association of America.
芝加哥风格引文Irving, Ron. Beyond the Quadratic Formula. Washington, D.C.: Mathematical Association of America, 2013.
MLA引文Irving, Ron. Beyond the Quadratic Formula. Mathematical Association of America, 2013.
警告：这些引文格式不一定是100％准确.