Sadiq,Naeem, & Khan, A. H. ISO 14001 Step by step: A practical (2nd ed.). IT Governance,2019.
Style de citation Chicago (17e éd.)Sadiq,Naeem, et Asif Hayat Khan. ISO 14001 Step by Step: A Practical. 2nd ed. United Kingdom: IT Governance,2019.
Style de citation MLA (9e éd.)Sadiq,Naeem, et Asif Hayat Khan. ISO 14001 Step by Step: A Practical. 2nd ed. IT Governance,2019.
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