APA (7th ed.) Citation

(1993). dBase IV: Version 2.0 programming in dbase IV. Borland International.

Chicago Style (17th ed.) Citation

DBase IV: Version 2.0 Programming in Dbase IV. Scott Valley, CA: Borland International, 1993.

MLA (9th ed.) Citation

DBase IV: Version 2.0 Programming in Dbase IV. Borland International, 1993.