Zapiski na inzhenera
By: Penko Penkov Somlev.
Edition: 2. izd.
Publisher: Dŭrzh. izd-vo "Tekhnika"
Published: 1988
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 221
Subjects: Somlev, Penkov -- Correspondence.; Engineers -- Bulgaria -- Correspondence.