Tietueen sitaatit
APA-viiteOrganisation for Economic Co-operation and Development. Secretariat. (1991). The state of the environment. Organisation for Economic Co-operation and Development.
Chicago-tyylinen lähdeviittausOrganisation for Economic Co-operation and Development. Secretariat. The State of the Environment. Paris: Organisation for Economic Co-operation and Development, 1991.
MLA-viiteOrganisation for Economic Co-operation and Development. Secretariat. The State of the Environment. Organisation for Economic Co-operation and Development, 1991.
Harvard-tyylinen lähdeviittausOrganisation for Economic Co-operation and Development. Secretariat. 1991. The state of the environment. Paris: Organisation for Economic Co-operation and Development.
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