Ruggiero, V. R. (2001). The art of thinking: A guide to critical and creative thought (6th ed.). Longman.
芝加哥风格引文Ruggiero, Vincent R. The Art of Thinking: A Guide to Critical and Creative Thought. 6th ed. New York: Longman, 2001.
MLA引文Ruggiero, Vincent R. The Art of Thinking: A Guide to Critical and Creative Thought. 6th ed. Longman, 2001.
警告：这些引文格式不一定是100％准确.