Human Development Index 2008, http://hdr.undp.org/es/content/table-2-human-development-index-trends-1980-2013 and http://www.datosmacro.com/idh?anio=2008, viewed 2nd January, 2015.
Citation
Human Development Index 2008, ChartsBin.com, viewed 24th December, 2024, <http://chartsbin.com/view/30662>.