APA (7 वां संस्करण) प्रशस्ति पत्र

MacDonald, L. (2004). Learn to be an optimist: Visualise your way to success, fine lifelong confidence and happiness, discover self-belief. Duncan Baird.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

MacDonald, Lucy. Learn to Be an Optimist: Visualise Your Way to Success, Fine Lifelong Confidence and Happiness, Discover Self-belief. London: Duncan Baird, 2004.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

MacDonald, Lucy. Learn to Be an Optimist: Visualise Your Way to Success, Fine Lifelong Confidence and Happiness, Discover Self-belief. Duncan Baird, 2004.