SIMPSON ALAN. (1989). UNDERSTANDING DBASE IV. BPB PUBLICATIONS.
Chicago Style (17th ed.) CitationSIMPSON ALAN. UNDERSTANDING DBASE IV. DELHI: BPB PUBLICATIONS, 1989.
MLA (9th ed.) CitationSIMPSON ALAN. UNDERSTANDING DBASE IV. BPB PUBLICATIONS, 1989.
Warning: These citations may not always be 100% accurate.