Scharnhorst. Mark Twain on Potholes and Politics. University of Missouri Press.
Lua i Stíl Chicago (17ú heag.)Scharnhorst. Mark Twain on Potholes and Politics. University of Missouri Press.
Lua MLA (9ú heag.)Scharnhorst. Mark Twain on Potholes and Politics. University of Missouri Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.