Smith, H. (2001). Why religion matters: The fate of the human spirit in an age of disbelief. HarperCollins.
Citazione stile Chigago Style (17a edizione)Smith, Huston. Why Religion Matters: The Fate of the Human Spirit in an Age of Disbelief. New York, N.Y: HarperCollins, 2001.
Citatione MLA (9a ed.)Smith, Huston. Why Religion Matters: The Fate of the Human Spirit in an Age of Disbelief. HarperCollins, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.