Edinadeseti Nat͡sionalni pedagogicheski chetenii͡a
Subtitle: minno delo, metalurgii͡a, energetika, mashinostroene, elektrotekhnika, elektronika, transport
By: [sŭstaviteli Marii͡a Ĭot͡sova ... et al.].
Contributors: Ĭot͡sova, Marii͡a.; Bulgaria. Ministerstvo na narodnata prosveta.
Publisher: [s.n.]
Published: 1985
Place of publication: Sofii͡a
Language: bul
Number of pages: 336
Subjects: Technology -- Congresses.
Other titles: 11. Nat͡sionalni pedagogicheski chetenii͡a.
Notes: Includes bibliographies.
At head of title: Ministerstvo na narodnata prosveta ...