Smith, K. J. (1986). Precalculus mathematics: A functional approach (3rd ed.). Brooks/Cole Pub. Co.
芝加哥风格引文Smith, Karl J. Precalculus Mathematics: A Functional Approach. 3rd ed. Pacific Grove, Calif: Brooks/Cole Pub. Co, 1986.
MLA引文Smith, Karl J. Precalculus Mathematics: A Functional Approach. 3rd ed. Brooks/Cole Pub. Co, 1986.
警告：这些引文格式不一定是100％准确.