SPENCE RICK. (1989). CLIPPER PROGRAMMING GUIDE. BPB PUBLICATIONS.
Chicagoスタイル(17版)引用形式SPENCE RICK. CLIPPER PROGRAMMING GUIDE. NEW DELHI: BPB PUBLICATIONS, 1989.
MLA(9版)引用形式SPENCE RICK. CLIPPER PROGRAMMING GUIDE. BPB PUBLICATIONS, 1989.
警告: この引用は必ずしも正確ではありません.