Organisation for Economic Co-operation and Development. (1994). Reducing environmental pollution: Looking back, thinking ahead : an examination of OECD member country progress, trends and opportunities for accelerated pollution reduction in the 1990s and beyond. OECD.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development. Reducing Environmental Pollution: Looking Back, Thinking Ahead : An Examination of OECD Member Country Progress, Trends and Opportunities for Accelerated Pollution Reduction in the 1990s and Beyond. Paris: OECD, 1994.
Παραπομπή σε μορφή MLA (9th εκδ.)Organisation for Economic Co-operation and Development. Reducing Environmental Pollution: Looking Back, Thinking Ahead : An Examination of OECD Member Country Progress, Trends and Opportunities for Accelerated Pollution Reduction in the 1990s and Beyond. OECD, 1994.