Economic geography of Russia. Textbook for High Schools (Vol 3) / Ekonomicheskaya geografiya Rossii Uchebnik dlya studentov vuzov, obuchayushchikhsya po spetsialnostyam ekonomiki i upravleniya (080100) - 3-e izd.,pererab. i dop. - ("Zolotoy fond rossiyskikh uchebnikov") (GRIF)