Plitko zalozheni metropoliteni
Subtitle: konstrukt͡sii i izgrazhdane
By: Stoi͡an Bratoev.
Publisher: Izdatelski t͡sentŭr "Stroitelstvo i arkhitektura"
Published: 1987
Place of publication: Sofii͡a
Language: bul
Number of pages: 167
Subjects: Subways -- Design and construction.
Notes: Includes bibliographical references.