Veryard, R. (1991). The Economics of Information Systems and Software. ELSEVIER.
Chicagoスタイル(17版)引用形式Veryard, Richard. The Economics of Information Systems and Software. ELSEVIER, 1991.
MLA(8版)引用形式Veryard, Richard. The Economics of Information Systems and Software. ELSEVIER, 1991.
警告: この引用は必ずしも正確ではありません.