Laing, A., & Thorndike, J. J. (1974). The american heritage history of seafaring america. American Heritage.
Lua i Stíl Chicago (17ú heag.)Laing, Alexander, agus Joseph J. Thorndike. The American Heritage History of Seafaring America. New York: American Heritage, 1974.
Lua MLA (9ú heag.)Laing, Alexander, agus Joseph J. Thorndike. The American Heritage History of Seafaring America. American Heritage, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.