APA (7th ed.) Citation

Ruggiero, V. R. (1998). The art of thinking: A guide to critical and creative thought (5th ed.). Longman.

Chicago Style (17th ed.) Citation

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. 5th ed. New York: Longman, 1998.

MLA (9th ed.) Citation

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. 5th ed. Longman, 1998.