dBase IV manual. (1989). Language reference. Tate.
Chicago-čujuhus (17. p.)dBase IV manual. Language Reference. Ashton: Tate, 1989.
MLA-čujuhus (9. p.)dBase IV manual. Language Reference. Tate, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.