000 003140000a22001330004500
008 140223b1964 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aH230E172 K4
082 _aH230E172 K4
100 _aVarentsov (I M)
245 _aSedimentary manganese ores
260 _c1964
650 _aPetrology
999 _c156539
_d156539