Não informado. (1955). Research and Engineering. Technical Publishing Corporation.
Lua i Stíl Chicago (17ú heag.)Não informado. Research and Engineering. New York: Technical Publishing Corporation, 1955.
Lua MLA (8ú heag.)Não informado. Research and Engineering. Technical Publishing Corporation, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.