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080 _a55(798)
100 1 _aHOPKINS, D. M.
245 0 _aGeology of the Imuruk lake area Seward Peninsula Alaska /
_cby D. M. Hopkins.
260 _aWashington :
_bUnited States Government Printing Office,
_c1963
300 _a101 p. + map. --
336 _2isbdcontent
_aTexto (visual)
337 _2isbdmedia
_3Impreso
_asin mediación
490 _aGeological Survey Bulletin
490 _v 1141-C
650 _aAlaska
650 _aGeología
942 _2cdu
942 _cBK
999 _c21454
_d21454