Teoretyko-metodychni osnovy ekolohichnoï osvity i vykhovanni︠a︡ uchniv 1-9 klasiv u pozashkilʹnykh navchalʹnykh zakladakh
By H. P. Pustovit
Subjects: Nature study, Student activities, Study and teaching (Elementary), Human ecology, "Naukove vydanni︠a︡"--Colophon
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