APA Citation

Ruggiero. (2009). The art of thinking: A guide to critical and creative thought (9th ed.). New York: Longman.

Chicago Style Citation

Ruggiero. The Art of Thinking: A Guide to Critical and Creative Thought. 9th ed. New York: Longman, 2009.

MLA Citation

Ruggiero. The Art of Thinking: A Guide to Critical and Creative Thought. 9th ed. New York: Longman, 2009.

Warning: These citations may not always be 100% accurate.