Lua APA (7ú heag.)

(1940). Vol. 12, № 11; Industrial and Engineering Chemistry. Analytical edition. 1940.

Lua i Stíl Chicago (17ú heag.)

Vol. 12, № 11; Industrial and Engineering Chemistry. Analytical Edition. 1940, 1940.

Lua MLA (9ú heag.)

Vol. 12, № 11; Industrial and Engineering Chemistry. Analytical Edition. 1940, 1940.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.