Coombs, R. S. (1992). Enlightening object lessons for children. Baker House.
芝加哥风格引文Coombs, Robert S. Enlightening Object Lessons for Children. Grand Rapids, Mich: Baker House, 1992.
MLA引文Coombs, Robert S. Enlightening Object Lessons for Children. Baker House, 1992.
警告：这些引文格式不一定是100％准确.