Model na ekologichnoto obrazovanie v edinnoto sredno politekhnichesko uchilishte
By: Zdravka Kostova.
Publisher: Ministerstvo na nar. prosveta, Nauchnoizsl. in-t po obshto obrazovanie "Akad. T. Samodumov"
Published: 1987
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 61
Subjects: Ecology -- Study and teaching.; Ecology -- Study and teaching -- Bulgaria.
Notes: Includes bibliographical references.