Não informado. Product Engineering. Product Design Digest Issue.
Lua i Stíl Chicago (17ú heag.)Não informado. Product Engineering. New York: Product Design Digest Issue.
Lua MLA (8ú heag.)Não informado. Product Engineering. Product Design Digest Issue.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.