Lua APA (7ú heag.)

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Examens environnementaux de l'OCDE. OCDE.

Lua i Stíl Chicago (17ú heag.)

Organisation for Economic Co-operation and Development agus ProQuest (Firm). Examens Environnementaux De L'OCDE. Paris: OCDE, 2009.

Lua MLA (9ú heag.)

Organisation for Economic Co-operation and Development agus ProQuest (Firm). Examens Environnementaux De L'OCDE. OCDE, 2009.

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