Não informado. (1990). Journal of Vibration and Acoustics. American Society of Mechanical Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Vibration and Acoustics. New York: American Society of Mechanical Engineers, 1990.
Lua MLA (8ú heag.)Não informado. Journal of Vibration and Acoustics. American Society of Mechanical Engineers, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.