Organisation for Economic Co-operation and Development (OECD), Börkey, P. M., Glachant, M., & Leveque, F. (1999). Voluntary approaches for environmental policy: An assessment. OECD.
Chicago Style (17. basım) AtıfOrganisation for Economic Co-operation and Development (OECD), Peter MM Börkey, Matthieu Glachant, ve François Leveque. Voluntary Approaches for Environmental Policy: An Assessment. Paris: OECD, 1999.
MLA (9th ed.) AtıfOrganisation for Economic Co-operation and Development (OECD), et al. Voluntary Approaches for Environmental Policy: An Assessment. OECD, 1999.
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