(1950). Vol. 72, № 3; Transactions of the ASME. 1950.
Lua i Stíl Chicago (17ú heag.)Vol. 72, № 3; Transactions of the ASME. 1950, 1950.
Lua MLA (9ú heag.)Vol. 72, № 3; Transactions of the ASME. 1950, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.