Uslovni znat︠s︡i za edromashtabni topografski karti
Subtitle: v mashtab 1:10 000, 1:5 000 i 1:2 000
By: [redaktirane i sŭstavi︠a︡ne, Li︠u︡bomir Manchev, Ilii︠a︡ Iv. Slavchev]
Contributors: Bulgaria. Upravlenie "Kadastur i geodezii︠a︡"
Publisher: Izd. UKG
Published: 1993
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 84
Subjects: Conventional signs; Topographical drawing