Bump, J. (1979). Providence, "The Wreck of the Deutschland," and a new Hopkins letter. s.n..
Lua i Stíl Chicago (17ú heag.)Bump, Jerome. Providence, "The Wreck of the Deutschland," and a New Hopkins Letter. [s.l.: s.n., 1979.
Lua MLA (8ú heag.)Bump, Jerome. Providence, "The Wreck of the Deutschland," and a New Hopkins Letter. s.n., 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.