Não informado. (1978). Journal of Mechanical Design. American Society of Mechanical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Mechanical Design. New York: American Society of Mechanical Engineers, 1978.
Lua MLA (8ú heag.)Não informado. Journal of Mechanical Design. American Society of Mechanical Engineers, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.