000 00938nam a2200265 1n4500
001 000146873
005 20210221171430.0
008 920106s1972 000 0 eng d
041 0 7 _aEng
_2ISO 639-1
084 _aAm.Géol 39e
245 0 0 _aSurvey metallic and non-metallic minerals, phase 2 :
_brepublic of Ecuador :
_bExploration for metallic minerals in southern Ecuador (operation N 8, Loja-El Oro) systematic geochemical exploration and geological reconnaissance
260 _aNew York :
_bUnited nations development programme,
_c1972
300 _a46 p: :
_bcarte, 2 cartes h. t., graph., tab.
490 0 _aTechnical report, 13
504 _abibliogr. p. 45-46, 2
650 0 4 _aGéologie économique
650 0 4 _aGéochimie
650 0 4 _aExploration
650 0 4 _aMinéral
653 0 5 _aEquateur
_aLoja
653 0 5 _aEquateur
_aEl Oro
910 _h1038
942 _cLIBRO
999 _c113749
_d113749