000 00679nam a2200217zi 4500
005 20220221131305.0
008 s1987 nuca eng0 09
020 _a0873350693
035 _aMX001000471450
050 _aTN410
_bS53
245 0 0 _aSmall mines development in precious metals /
_cEditors ta. m. li, Thomas m. plouf
264 1 _aLittleton, colorado :
_bSociety fo mining engineers,
_c1987
300 _a261 páginas
650 _aMetales preciosos
700 _aLi, Ta M.
_eeditor
700 _aPlouf, Thomas M.,
_eeditor
336 _atexto
_2rdacontent
337 _asin medio
_2rdamedia
338 _avolumen
_2rdacarrier
999 _c6624
_d6624