Awad, E. M. (1971). Business data processing (3rd ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Awad, Elias M. Business Data Processing. 3rd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1971.
Lua MLA (8ú heag.)Awad, Elias M. Business Data Processing. 3rd ed. Prentice-Hall, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.