Friedl, A. E. (2001). Teaching science to children: An inquiry approach (5th ed.). McGraw-Hill.
芝加哥风格引文Friedl, Alfred E. Teaching Science to Children: An Inquiry Approach. 5th ed. Boston: McGraw-Hill, 2001.
MLA引文Friedl, Alfred E. Teaching Science to Children: An Inquiry Approach. 5th ed. McGraw-Hill, 2001.
警告：这些引文格式不一定是100％准确.