Kutz, R. E. (1991). Teaching elementary mathematics: An active approach. Allyn and Bacon.
芝加哥风格引文Kutz, Ronald E. Teaching Elementary Mathematics: An Active Approach. Boston: Allyn and Bacon, 1991.
MLA引文Kutz, Ronald E. Teaching Elementary Mathematics: An Active Approach. Allyn and Bacon, 1991.
警告：这些引文格式不一定是100％准确.