BEYOND-Davis, P. (1991). Expert Database Systems A Genrle Introduction Paul Beyond-davis. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BEYOND-Davis, Paul. Expert Database Systems A Genrle Introduction Paul Beyond-davis. McGraw-Hill, 1991.
Lua MLA (8ú heag.)BEYOND-Davis, Paul. Expert Database Systems A Genrle Introduction Paul Beyond-davis. McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.