Columbia subject headings:
Harvard subject headings:
Atlases--Russia
Geology, Stratigraphic--Paleozoic--Atlases.
Geology, Stratigraphic--Precambrian--Atlases.
Geology--Atlases.
Paleogeography--Atlases.
Petrology--Atlases.
Princeton subject headings:
Geology, Stratigraphic--Maps.
Maps.