Cita APA (7a ed.)

Bush, H. K. (2007). Mark Twain and the Spiritual Crisis of His Age. University of Alabama Press.

Cita Chicago Style (17a ed.)

Bush, Harold K. Mark Twain and the Spiritual Crisis of His Age. Tuscaloosa: University of Alabama Press, 2007.

Cita MLA (8a ed.)

Bush, Harold K. Mark Twain and the Spiritual Crisis of His Age. University of Alabama Press, 2007.