Davis, G. B. (1981). Computer data processing (2d ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Davis, Gordon Bitter. Computer Data Processing. 2d ed. New York: McGraw-Hill, 1981.
Lua MLA (8ú heag.)Davis, Gordon Bitter. Computer Data Processing. 2d ed. McGraw-Hill, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.