Não informado. (1954). Chemical engineering. [s.n.].
Lua i Stíl Chicago (17ú heag.)Não informado. Chemical Engineering. New York: [s.n.], 1954.
Lua MLA (8ú heag.)Não informado. Chemical Engineering. [s.n.], 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.