dBase IV manual. (1986). Guide to dBase IV. Tate.
Lua i Stíl Chicago (17ú heag.)dBase IV manual. Guide to DBase IV. Ashton: Tate, 1986.
Lua MLA (9ú heag.)dBase IV manual. Guide to DBase IV. Tate, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.