Harrison, D. (1985). Data processing. Galgotia.
Lua i Stíl Chicago (17ú heag.)Harrison, David. Data Processing. New delhi: Galgotia, 1985.
Lua MLA (9ú heag.)Harrison, David. Data Processing. Galgotia, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.