USSR: Karst and mining areas. 1-62.
United States. Central Intelligence Agency.
cartographic
[Washington,
1962]
eng
Scale ca. 1:15,000,000.
"35622."
Mines and mineral resources--Soviet Union--Maps.
Karst--Soviet Union--Maps.
Soviet Union.
Available also through the Library of Congress Web site as a raster image.
http://hdl.loc.gov/loc.gmd/g7001h.ct002928