OECD factbook : economic, environmental and social statistics - Organisation for Economic Co-operation and Development (Paris : OECD, 2005)
PTSL : 2005, 2006, 2007, 2008, 2009, 2010, 2011
Keywords: OECD countries -- Economic conditions -- Statistics; OECD countries -- Environmental conditions -- Statistics; OECD countries -- Social conditions -- Statistics