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Minerals yearbook, 2008 : metals a. minerals, 2008 / U.S. Dep. of the interior, U.S. geological survey. - [Washington : U.S. Gov. print. off., 2010]. - 29 cm.см.[MFN: 33688]
Minerals yearbook, 2008 : metals a. minerals, 2008 / U.S. Dep. of the interior, U.S. geological survey. - [Washington : U.S. Gov. print. off., 2010]. - 29 cm.см.[MFN: 33688]