Pravilnik za dvizhenieto na vlakovete i manevrenata rabota v zheleznit͡site (PDV).
Publisher: Ministerstvo na transporta, Bŭlgarski dŭrzh. zheleznit͡si
Published: 1991
Place of publication: [Sofii͡a]
Language: bul
Number of pages: 238
Subjects: Railroads -- Bulgaria -- Safety measures -- Handbooks, manuals, etc.