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RuMineral resources
Mineral resources
Expedition to explore oil deposits in the Bashkir ASSR, 1931.
An expedition to explore oil deposits in the Bashkir ASSR, 1931. St. Petersburg: Presidential Library, 2010.
2010
Exploration of minerals on the Kola Peninsula, 1932.
Exploration of minerals on the Kola Peninsula, 1932 St. Petersburg: Presidential b. Yeltsin ", 2010.
2010
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