Sayre, D. (1997). Inside ISO 14000: The competitive advantage of environmental management. St. Lucie Press ; Vanity Books International.
Chicago-viite (17. p.)Sayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. Delray Beach, Fla. : New Delhi: St. Lucie Press ; Vanity Books International, 1997.
MLA-viite (8. p.)Sayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. St. Lucie Press ; Vanity Books International, 1997.
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