AWAD, E. M. (1971). Business Data Processing.
Lua i Stíl Chicago (17ú heag.)AWAD, Elias M. Business Data Processing. 1971.
Lua MLA (8ú heag.)AWAD, Elias M. Business Data Processing. 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.