Edwards, A. J. (2001). ISO 14001 environmental certification: Step by step. Butterworth Heinemann.
Chicagoスタイル(17版)引用形式Edwards, A. J. ISO 14001 Environmental Certification: Step by Step. Oxford: Butterworth Heinemann, 2001.
MLA(9版)引用形式Edwards, A. J. ISO 14001 Environmental Certification: Step by Step. Butterworth Heinemann, 2001.
警告: この引用は必ずしも正確ではありません.