Não informado. (1977). Production Engineering. Penton/IPC.
Lua i Stíl Chicago (17ú heag.)Não informado. Production Engineering. Cleveland, Ohio: Penton/IPC, 1977.
Lua MLA (8ú heag.)Não informado. Production Engineering. Penton/IPC, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.