Nierenberg, G. (1982). The art of creative thinking. Simon & Schuster.
Chicago Style aipamenaNierenberg, Gwrard. The Art of Creative Thinking. New York: Simon & Schuster, 1982.
MLA aipamenaNierenberg, Gwrard. The Art of Creative Thinking. Simon & Schuster, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.