APA (7th ed.) Zitazioa

Voorhees, J. (1998). International environmental risk management ISO 14000: And the systems approach. Lewis.

Chicago Style (17th ed.) Zitazioa

Voorhees, John. International Environmental Risk Management ISO 14000: And the Systems Approach. Boca Raton: Lewis, 1998.

MLA (9th ed.) Zitazioa

Voorhees, John. International Environmental Risk Management ISO 14000: And the Systems Approach. Lewis, 1998.