Podgotovka i povishavane kvalifikat͡s︡ii͡a︡ta na uchitelite po problemite za opazvane na okolnata sreda
By: [avtori Zdravka Kostova ... et al. ; redaktor Pencho Chernaev].
Contributors: Kostova, Zdravka.; Chernaev, Pencho.; Nauchnoizsledovatelski institut po obshto obrazovanie "T. Samodumov."; Bulgaria. Sŭvet po visshe obrazovanie.
Publisher: Nauchnoizsledovatelski in-t po obshto obrazovanie "T. Samodumov"
Published: 1981
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 251
Subjects: Environmental education -- Bulgaria.; Ecology -- Study and teaching -- Bulgaria.
Notes: Includes bibliographies.
At head of title: Ministerstvo na narodnata prosveta. Nauchnoizsle dovatelski institut po obshto obrazovanie "T. Samodumov." Sŭvet po visshe obrazovanie.