KOLODNEY DAVID. (1989). QUICK GUIDE TO DBASE. BPB PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)KOLODNEY DAVID. QUICK GUIDE TO DBASE. DELHI: BPB PUBLICATIONS, 1989.
Lua MLA (9ú heag.)KOLODNEY DAVID. QUICK GUIDE TO DBASE. BPB PUBLICATIONS, 1989.
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