APA-viite (7. p.)

Ruggiero, V. R. (2007). The art of thinking: A guide to critical and creative thought (Eigth Edition.). Pearson.

Chicago-viite (17. p.)

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. Eigth Edition. New York: Pearson, 2007.

MLA-viite (9. p.)

Ruggiero, Vincent Ryan. The Art of Thinking: A Guide to Critical and Creative Thought. Eigth Edition. Pearson, 2007.