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APA-referensOrganisation for Economic Co-operation and Development. Environment Committee. Group on Energy and Environment. (1987). Coal: Environmental policies and institutions. Organisation for Economic Co-operation and Development.
Chicago-stil citatOrganisation for Economic Co-operation and Development. Environment Committee. Group on Energy and Environment. Coal: Environmental Policies and Institutions. [Paris]: Organisation for Economic Co-operation and Development, 1987.
MLA-referensOrganisation for Economic Co-operation and Development. Environment Committee. Group on Energy and Environment. Coal: Environmental Policies and Institutions. Organisation for Economic Co-operation and Development, 1987.
Harvard-stil citatOrganisation for Economic Co-operation and Development. Environment Committee. Group on Energy and Environment. 1987. Coal: Environmental policies and institutions. [Paris]: Organisation for Economic Co-operation and Development.