Whitelaw, K. (2004). Iso 14001 environmental systems handbook. Amsterdam: Elsevier.
Chicago Style aipamenaWhitelaw, Ken. Iso 14001 Environmental Systems Handbook. Amsterdam: Elsevier, 2004.
MLA aipamenaWhitelaw, Ken. Iso 14001 Environmental Systems Handbook. Amsterdam: Elsevier, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.