Sŭobshtenii︠a︡ta v Bŭlgarii︠a︡ - 120 godini
By: Angel Georgiev
Publisher: Komitet po poshti i dalekosŭobshtenii︠a︡
Published: 1999
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 88
Subjects: Telecommunication; History; Postal service