Analysis of information sources in references of the Wikipedia article "Visla" in Croatian language version.
Vistula - the most important and the longest river in Poland, and the largest river in the area of the Baltic Sea. The length of Vistula is 1047 km.
Vistula - the most important and the longest river in Poland, and the largest river in the area of the Baltic Sea. The length of Vistula is 1047 km.