(1942). Vol. 64, № 2; Transactions of the ASME. 1942.
Lua i Stíl Chicago (17ú heag.)Vol. 64, № 2; Transactions of the ASME. 1942, 1942.
Lua MLA (9ú heag.)Vol. 64, № 2; Transactions of the ASME. 1942, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.