Geologii͡a na Predbalkana v Tetevensko
Subtitle: Geologie des Vorbalkan von Tetewen
By: El. Raf. Koen
Published: 1931
Language: bul
Number of pages: 96
Other titles: Geologie des Vorbalkan von Tetewen.
Notes: Thesis (doctoral)--University of Sofia, 1931.