Ellis, A. K. (1986). Teaching and learning elementary social studies (3rd ed.). Allyn and Bacon.
芝加哥风格引文Ellis, Arthur K. Teaching and Learning Elementary Social Studies. 3rd ed. Boston: Allyn and Bacon, 1986.
MLA引文Ellis, Arthur K. Teaching and Learning Elementary Social Studies. 3rd ed. Allyn and Bacon, 1986.
警告：这些引文格式不一定是100％准确.