Ruggiero, V. R. (1998). The art of thinking: A guide to critical and creative thought (5th ed.). Longman.
芝加哥风格引文Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. 5th ed. New York: Longman, 1998.
MLA引文Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. 5th ed. Longman, 1998.
警告：这些引文格式不一定是100％准确.