APA aipamena

Scharnhorst. The Life of Mark Twain. University of Missouri Press.

Chicago Style aipamena

Scharnhorst. The Life of Mark Twain. University of Missouri Press.

MLA aipamena

Scharnhorst. The Life of Mark Twain. University of Missouri Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.