Evropeĭska regionalna konferent͡s︡ii͡a︡ po speleologii͡a︡
Subtitle: Sofii͡a︡--N.R. Bŭlgarii͡a︡, 22-28.IX.1980 : sbornik ot materiali
By: [redakt͡s︡ionna kolegii͡a︡ Li͡u︡bomir Dinev (otg. redaktor) ... et al.] = European Regional Conference on Speleology : Sofia--Bulgaria, September 22-28, 1980 : proceedings / [editorial board Ljubomir Dinev (editor) ... et al.].
Contributors: Dinev, Li͡u︡bomir.; Bŭlgarska federat͡s︡ii͡a︡ po peshterno delo.; Bŭlgarski turisticheski sŭi͡u︡z.; Sŭi͡u︡z na nauchnite rabotnit͡s︡i v Bŭlgarii͡a︡.
Publisher: [s.n.]
Published: 1981
Place of publication: Sofia
Language: bul
Subjects: Speleology -- Congresses.
Other titles: European Regional Conference on Speleology.
Notes: Bulgarian, English, French, German, Italian, and Russian.
At head of title, v. 1-<2   >: Bŭlgarska federat͡s︡ii͡a︡ po peshterno delo. Bŭlgarski turisticheski sŭi͡u︡z. Sŭi͡u︡z na nauchnite rabotnit͡s︡i v Bŭlgarii͡a︡.