Não informado. (1972). Journal of Structural Mechanics. Marcel Dekker.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Structural Mechanics. New York: Marcel Dekker, 1972.
Lua MLA (8ú heag.)Não informado. Journal of Structural Mechanics. Marcel Dekker, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.