Population in world capitals, https://www.google.cz/url?sa=t&rct=j&q=&esrc=s&source=web&cd=12&ved=0CCkQFjABOAo&url=http%3A%2F%2Fesa.un.org%2Funup%2FCD-ROM%2FWUP2011-F13-Capital_Cities.xls&ei=oacRVLy4EeXRywOwo4AY&usg=AFQjCNEzKg3_W1CrdLpJzu9xsuS_iqUUXw&sig2=tdlwEkMqBdVX8mGYCz4DMA&bvm=bv.74894050,d.ZWU&cad=rja, viewed 11th September, 2014.
Citation
Population in World Capitals, ChartsBin.com, viewed 18th December, 2024, <http://chartsbin.com/view/26638>.