Gray, J. (2000). How to get what you want and want what you have: A practical and spiritual guide to personal success. HarperCollins.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gray, John. How to Get What You Want and Want What You Have: A Practical and Spiritual Guide to Personal Success. New York: HarperCollins, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Gray, John. How to Get What You Want and Want What You Have: A Practical and Spiritual Guide to Personal Success. HarperCollins, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.