Sayre, D. (1997). Inside ISO 14000: The competitive advantage of environmental management. St. Lucie Press ; Vanity Books International.
Chicago-referens (17:e uppl.)Sayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. Delray Beach, Fla. : New Delhi: St. Lucie Press ; Vanity Books International, 1997.
MLA-referens (8:e uppl.)Sayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. St. Lucie Press ; Vanity Books International, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.