Beteanski dni i noshti
Subtitle: 100 godini Bŭlgarska telegrafna agent︠s︡ii︠a︡ (BTA) (1898-1998 g.)
By: Georgi Vedrodenski.
Edition: 1. izd.
Publisher: Izd-vo "Sibii︠a︡"
Published: 2001
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 284
Subjects: Bŭlgarska telegrafna agent︠s︡ii︠a︡ -- History.; Telegraph -- Bulgaria -- History.; Telecommunication -- Bulgaria -- History.