(1948). Vol. 70, № 5; Transactions of the ASME. 1948.
Lua i Stíl Chicago (17ú heag.)Vol. 70, № 5; Transactions of the ASME. 1948, 1948.
Lua MLA (9ú heag.)Vol. 70, № 5; Transactions of the ASME. 1948, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.