Citazione Stile APA (7a Edizione)
Bush, H. K. (2007). Mark Twain and the spiritual crisis of his age. University of Alabama Press.
Citazione stile Chigago Style (17a edizione)
Bush, Harold K. Mark Twain and the Spiritual Crisis of His Age. Tuscaloosa: University of Alabama Press, 2007.
Citatione MLA (9a ed.)
Bush, Harold K. Mark Twain and the Spiritual Crisis of His Age. University of Alabama Press, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.