Não informado. (1980). Materials in Engineering. Scientific and Technical Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Materials in Engineering. Surrey, Inglaterra: Scientific and Technical Press, 1980.
Lua MLA (8ú heag.)Não informado. Materials in Engineering. Scientific and Technical Press, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.