Lua APA (7ú heag.)

Ruggiero, V. R. (2001). The art of thinking: A guide to critical and creative thought (6th ed.). Longman.

Lua i Stíl Chicago (17ú heag.)

Ruggiero, Vincent R. The Art of Thinking: A Guide to Critical and Creative Thought. 6th ed. New York: Longman, 2001.

Lua MLA (9ú heag.)

Ruggiero, Vincent R. The Art of Thinking: A Guide to Critical and Creative Thought. 6th ed. Longman, 2001.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.