(1989). Encyclopedia of information systems and services. Gale Research.
Chicagoスタイル(17版)引用形式Encyclopedia of Information Systems and Services. Ann Arbor, MI: Gale Research, 1989.
MLA(9版)引用形式Encyclopedia of Information Systems and Services. Gale Research, 1989.
警告: この引用は必ずしも正確ではありません.