Bello, I., & Britton, J. R. (1990). Intermediate algebra. Dellen Pub. Co.
芝加哥风格引文Bello, Ignacio, 与 Jack Rolf Britton. Intermediate Algebra. San Francisco: Dellen Pub. Co, 1990.
MLA引文Bello, Ignacio, 与 Jack Rolf Britton. Intermediate Algebra. Dellen Pub. Co, 1990.
警告：这些引文格式不一定是100％准确.