Não informado. (1999). System development. Applied Computer Research.
Chicagoスタイル(17版)引用形式Não informado. System Development. Phoenix, Ariz: Applied Computer Research, 1999.
MLA(8版)引用形式Não informado. System Development. Applied Computer Research, 1999.
警告: この引用は必ずしも正確ではありません.