Gray, J. (2000). How to get what you want and want what you have: A practical and spiritual guide to personal success. HarperCollins.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (9a ed.)Gray, John. How to Get What You Want and Want What You Have: A Practical and Spiritual Guide to Personal Success. HarperCollins, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.