Statistical Yearbook 2014, National
Statistical Institute, Sofia 2015,
II. Territory, surface and climate;
2. Frontiers of Bulgaria (Source: The Geodesy, Cartography
and Cadastre Agency at the Ministry of Regional Development
and Public Works.), p. 13.
Photo of the border between xxx, Bulgaria
and xxx, Serbia.
This page was first time published on 18 August 2015, and the page was last time updated