000 00788nas a2200217Ia 4500
001 MUSEF-HEM-PPE-088063
003 BO-LP-MUSEF
008 190909c99999999xx |||||||||||| ||spa||
040 _aBO-LpMNE
100 _aHarvey Emmons, William.
245 4 _aThe Enrichment of ore Deposits.
260 _aWashington-US :
_bUnited States Geological Survey Bulletin,
_c1917.
300 _apáginas 3-530 :
_bIIustraciones blanco y negro
362 _aNo. 625 (1917)
490 _aUnited States Geological Survey Bulletin ;
_vno.625
773 _a
_tUnited States Geological Survey Bulletin
_dWhasington, Department of the Interior,1917
810 _aUnited States Geological Survey.
850 _aBO-LpMNE
901 _aSandra Limachi Larico
942 _aBIB
_bBIB
_cPPE
_2ddc
_dCON
_j011
999 _c240925
_d240925