Morris, A. S. (2004). ISO 14000 environmental management standards: Engineering and financial aspects. John Wiley & Sons.
Chicago Style aipamenaMorris, Alan S. ISO 14000 Environmental Management Standards: Engineering and Financial Aspects. England: John Wiley & Sons, 2004.
MLA aipamenaMorris, Alan S. ISO 14000 Environmental Management Standards: Engineering and Financial Aspects. John Wiley & Sons, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.