Izpolzuvane na pozemlenite resursi v Bŭlgarii︠a︡
By: Evg. Petrov, Zh. Strashilov, P. Kostov
Publisher: Zemizdat
Published: 1976
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 213
Subjects: Land use
Notes: Bibliography: p.213.