Pellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
Lua i Stíl Chicago (17ú heag.)Pellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
Lua MLA (8ú heag.)Pellett. Whaleback Ships and the American Steel Barge Company. Wayne State University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.