LANGENBACH, R. G. (1968). Introduction To Automated Data Processing Robert G. Langenbach. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)LANGENBACH, Robert G. Introduction To Automated Data Processing Robert G. Langenbach. Prentice-Hall, 1968.
Lua MLA (8ú heag.)LANGENBACH, Robert G. Introduction To Automated Data Processing Robert G. Langenbach. Prentice-Hall, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.