Title: Tezisy dokladov Vsesoi͡uznoĭ nauchnoĭ konferent͡sii "Obrazovanie po voprosam okruzhai͡ushcheĭ sredy", Ivanovo, 18-20 senti͡abri͡a 1984 g
Subjects: Congresses, Environmental protection, Study and teaching
Places: Soviet Union