Não informado. (1971). Software: Practice and Experience. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Não informado. Software: Practice and Experience. London: John Wiley & Sons, 1971.
Lua MLA (8ú heag.)Não informado. Software: Practice and Experience. John Wiley & Sons, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.