Obi︠a︡snenie na lista T︠S︡aribrod ot geolozhkata karta na Bulgarii︠a︡ v mi︠e︡rka 1
Subtitle: 126,000
Series: Sofia. Universitet. Universitetska biblioteka -- kn. 100
Published: 1930
Place of publication: Sofii︠a︡
Language: bul