Proceedings of the Geomorphological Institute.Ext.4: Geography of the vegetation cover of the north-west of the European part of...

Proceedings of the Geomorphological Institute.Ext.4: Geography of the vegetation cover of the North-West of the European part of the USSR / Grigoryev A.A.- Leningrad: Publishing House of the Academy of Sciences of the USSR, 1932. -605: Territory..Electronic copy source: Bin RAS