dBase IV manual. (1989). Language reference. Tate.
Lua i Stíl Chicago (17ú heag.)dBase IV manual. Language Reference. Ashton: Tate, 1989.
Lua MLA (9ú heag.)dBase IV manual. Language Reference. Tate, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.