Carin, A. A. (1997). Guided discovery activities for elementary school science (4th ed.). Merrill.
芝加哥风格引文Carin, Arthur A. Guided Discovery Activities for Elementary School Science. 4th ed. Upper Saddle River, N.J: Merrill, 1997.
MLA引文Carin, Arthur A. Guided Discovery Activities for Elementary School Science. 4th ed. Merrill, 1997.
警告：这些引文格式不一定是100％准确.