ASHLEY RUTH. (1984). USING STRUCTURED COBOL,COBOL-2. WILEY EASTERN LTD.
Chicagoスタイル(17版)引用形式ASHLEY RUTH. USING STRUCTURED COBOL,COBOL-2. SINGAPORE: WILEY EASTERN LTD, 1984.
MLA(9版)引用形式ASHLEY RUTH. USING STRUCTURED COBOL,COBOL-2. WILEY EASTERN LTD, 1984.
警告: この引用は必ずしも正確ではありません.