Cita APA (7th ed.)
(2001). OECD environmental indicators 2001: Towards sustainable development. OECD.
Cita Chicago (17th ed.)
OECD Environmental Indicators 2001: Towards Sustainable Development. Paris, Cedex, France: OECD, 2001.
Cita MLA (9th ed.)
OECD Environmental Indicators 2001: Towards Sustainable Development. OECD, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.