Tekhnicheskii͡at progres na Bŭlgarii͡a v dati i sŭbitii͡a
By: [avtor Mladen Gutev T͡Sonev].
Contributors: Nauchno-tekhnichesi sŭi͡uzi v Bŭlgarii͡a. T͡Sentralen sŭvet.
Edition: 1. izd.
Publisher: T͡Sentr. sŭvet na Nauchno-tekhn. sŭi͡uzi v Bŭlgarii͡a
Published: 1982
Place of publication: Sofii͡a
Language: bul
Number of pages: 83
Subjects: Technology -- Bulgaria -- History.