Gaya APA

International environmental risk management : ISO 14000 and the systems approach / John Voorhees, Robert A. Woellner. (1998). : Boca Raton, Fla., Lewis Publishers.

Gaya MLA

International environmental risk management : ISO 14000 and the systems approach / John Voorhees, Robert A. Woellner. . : Boca Raton, Fla., Lewis Publishers, 1998. Text.