Não informado. (1960). Undersea technology. Sheffield Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Undersea Technology. Washington: Sheffield Publishing, 1960.
Lua MLA (8ú heag.)Não informado. Undersea Technology. Sheffield Publishing, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.