Matches in Library of Congress for { ?s ?p Bibliograficheskiĭ ukazatelʹ literatury po obrazovanii︠u︡ v oblasti okhrany okruzhai︠u︡shcheĭ sredy / sostavitelʹ D.G. Mamaev ; nauch. redaktor A.N. Grat︠s︡ianskiĭ.. }
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