000 00755nam a2200229Ia 4500
008 170503s9999||||xx |||||||||||||| ||und||
080 _a549(73)
245 0 _aRegional structure of the Southeast Missouri and Illinois-Kentucky mineral districts /
_cby A. V. Heyl...[et al.].
260 _aWashington :
_bUnited States Government Printing Office,
_c1965
300 _a20 p. + map. --
336 _2isbdcontent
_aTexto (visual)
337 _2isbdmedia
_3Impreso
_asin mediación
490 _aGeological Survey Bulletin
490 _v 1202-B
650 _aIllinois
650 _aKentucky
650 _aMineralogía
650 _aMissouri
942 _2cdu
942 _cBK
999 _c21772
_d21772