Reka Dunav i neĭnoto stopansko znachenie za Bŭlgarii︠a︡
Publisher: Nauka i izkustvo
Published: 1964
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 232
Subjects: Harbors; Commerce; Politics and government
Notes: In Cyrillic characters.

At head of title: Vasil Dakov.

Bibliography: p. 229-231.