Our land: Initial. visibility. geography for children in connection with natural history: Nauch. section State. scientist. Council allowed for schools I stup. / According to H. Fairbanks; HER. Gorbunova-Posadova. - 2 nd ed. -Moscow; Petrograd: Gos. publishing house. -288 sec. : ил .. - (Textbooks and manuals for the labor school, textbooks and teaching aids for schools I and II steps). -20000 copies.