Sredno profesionalno tekhnichesko uchilishte po khimicheska promishlenost "D. Iv. Mendeleev".
Publisher: [s.n.]
Published: 1978
Place of publication: Stara Zagora
Language: bul
Number of pages: 16
Subjects: Sredno profesionalno tekhnichesko uchilishte po khimicheska promishlenost "D. Iv. Mendeleev".