000 01099cam a2200301 4500
001 gs 66000256
003 DLC
005 20260227111419.0
008 690605m19601966dcuab b 000 0 eng c
010 _ags 66000256 //r983
040 _aU.S. Geological Survey Library
_cDLC
_dDLC
043 _an-usm--
050 1 0 _aQE75
_b.B9 no. 1123
110 2 0 _aGeological Survey (U.S.)
245 1 0 _aGeology of parts of the upper Mississippi Valley zinc-lead district.
260 0 _aWashington,
_bU.S. Govt. Print. Off.
_c[1960-1966]
300 _a571 p.
_billus., maps (part col.)
_c24 cm.
490 1 _aBulletin
_vno. 1123
500 _aPart of illustrative matter folded in pocket.
500 _aIssued as separate chapters A-I.
504 _aIncludes bibliographies.
650 0 _aGeology
_zMississippi River Valley.
650 0 _aMines and mineral resources
_zMississippi River Valley.
650 0 _aLead ores
_zMississippi River Valley.
650 0 _aZinc ores
_zMississippi River Valley.
740 1 _aMississippi Valley zinc-lead district.
830 0 _aGeological Survey bulletin ;
_v1123.
999 _c30243
_d30243