Tohutoro APA (7th ed.)

Bush, H. K. (2007). Mark Twain and the spiritual crisis of his age. University of Alabama Press.

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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