(2000). Environmental Management system (EMS) EMS Audit and ISO 14000 Certification: Green Productivity Program. Carl Duisberg gesellschaft.
シカゴスタイル引用形Environmental Management System (EMS) EMS Audit and ISO 14000 Certification: Green Productivity Program. Carl Duisberg gesellschaft, 2000.
MLA引用形式Environmental Management System (EMS) EMS Audit and ISO 14000 Certification: Green Productivity Program. Carl Duisberg gesellschaft, 2000.
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