Não informado. (1973). Journal of Engineering Materials and Technology. American Society of Mechanical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Engineering Materials and Technology. New York: American Society of Mechanical Engineers, 1973.
Lua MLA (8ú heag.)Não informado. Journal of Engineering Materials and Technology. American Society of Mechanical Engineers, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.