Zapiski na inzhenera
By: Penko Penkov Somlev.
Edition: 1. izd.
Publisher: Dŭrzh. izd-vo "Tekhnika"
Published: 1987
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 176
Subjects: Somlev, Penko Penkov -- Correspondence.; Engineers -- Bulgaria -- Correspondence.