Podgotovka na uchitelite po ekologii͡a︡
By: sŭstaviteli Zdravka Kostova, Pavlina Vekilska, Ivan Nonchev.
Contributors: Kostova, Zdravka.; Vekilska, Pavlina.; Nonchev, Ivan.; Nauchnoizsledovatelski institut po obshto obrazovanie "T. Samodumov."; Bulgaria. Komitet za opazvane na prirodnata sreda.
Series: Obrazovanieto i opazvaneto na okolnata sreda ;; 2
Publisher: [s.n.]
Published: 1983
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 233
Subjects: Ecology -- Study and teaching -- Bulgaria.
Notes: Includes bibliographical references.
At head of title: Ministerstvo na narodnata prosveta. Nauchno-izsledovatelski institut po obshto obrazovanie "T. Samodumov." Komitet po opazvane na prirodnata sreda pri Ministerskii͡a︡ sŭvet.