APA (7th ed.) Citation

Ruggiero, V. R. (1984). The art of thinking: A guide to critical and creative thought. Harper & Row.

Chicago Style (17th ed.) Citation

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. New York: Harper & Row, 1984.

MLA (9th ed.) Citation

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. Harper & Row, 1984.