Citazione Stile APA (7a Edizione)

Edwards, A. J. (2004). ISO 14001 environmental certification step by step (Revised 1st ed.). Elsevier Butterworth-Heinemann.

Citazione stile Chigago Style (17a edizione)

Edwards, A. J. ISO 14001 Environmental Certification Step by Step. Revised 1st ed. Oxford: Elsevier Butterworth-Heinemann, 2004.

Citatione MLA (9a ed.)

Edwards, A. J. ISO 14001 Environmental Certification Step by Step. Revised 1st ed. Elsevier Butterworth-Heinemann, 2004.