Sayre, D. (1997). Inside ISO 14000: The competitive advantage of environmental management. Vanity Books international.
Chicago Stili AlıntıSayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. New delhi: Vanity Books international, 1997.
MLA AlıntıSayre, Don. Inside ISO 14000: The Competitive Advantage of Environmental Management. Vanity Books international, 1997.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..