Smart Quotes - Page 13
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Robert M. Sapolsky (2004). “Why Zebras Don't Get Ulcers: The Acclaimed Guide to Stress, Stress-Related Diseases, and Coping - Now Revised and Updated”, p.4, Macmillan
Wally Lamb (1998). “I Know This Much Is True”, p.897, Cambridge University Press
Dr. Robert C. Worstell, James Breckenridge Jones, Napoleon Hill (2015). “Think and Grow Rich, Updated and Complete - With If You Can Count to Four...”, p.120, Lulu.com