Dyfyniad APA

Sadiq,Naeem, & Khan, A. H. ISO 14001 Step by step: A practical (2nd ed.). IT Governance,2019.

Dyfyniad Arddull Chicago

Sadiq,Naeem, and Asif Hayat Khan. ISO 14001 Step by Step: A Practical. 2nd ed. United Kingdom: IT Governance,2019.

Dyfyniad MLA

Sadiq,Naeem, and Asif Hayat Khan. ISO 14001 Step by Step: A Practical. 2nd ed. IT Governance,2019.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.