(1954). Vol. 46, № 6; Industrial and Engineering Chemistry. 1954.
Lua i Stíl Chicago (17ú heag.)Vol. 46, № 6; Industrial and Engineering Chemistry. 1954, 1954.
Lua MLA (9ú heag.)Vol. 46, № 6; Industrial and Engineering Chemistry. 1954, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.