SIMPSON ALAN. (1986). ADVANCED TECHNIQUES IN DBASE 111 PLUS. BPB PUBLICATIONS.
Chicagoスタイル(17版)引用形式SIMPSON ALAN. ADVANCED TECHNIQUES IN DBASE 111 PLUS. DELHI: BPB PUBLICATIONS, 1986.
MLA(9版)引用形式SIMPSON ALAN. ADVANCED TECHNIQUES IN DBASE 111 PLUS. BPB PUBLICATIONS, 1986.
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