Não informado. (1965). International Journal of Fracture Mechanics. Wolters-Noordhoff Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Fracture Mechanics. Groningen, Holanda: Wolters-Noordhoff Publishing, 1965.
Lua MLA (8ú heag.)Não informado. International Journal of Fracture Mechanics. Wolters-Noordhoff Publishing, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.