Não informado. (1977). Journal of the Technical Councils of ASCE. American Society of Civil Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of the Technical Councils of ASCE. New York: American Society of Civil Engineers, 1977.
Lua MLA (8ú heag.)Não informado. Journal of the Technical Councils of ASCE. American Society of Civil Engineers, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.