00717cam a22002171  4500001001300000003000400013005001700017008004100034010001700075035001900092040001900111042001200130050001700142100005400159245007800213260008200291300002500373650004100398710004300439999001700482gs 58000148 DLC20260227111406.0790612s1957    miuab        s000 0 eng    ags 58000148   a(OCoLC)5058913  aDLCcTxCMdDLC  apremarc00aQE126.H5bM31 aMartin, Helen M.q(Helen Mandeville),d1889-1973.10aOutline of the geologic history of Hillsdale County,cby Helen M. Martin.  a[Lansing,bMichigan Dept. of Conservation, Geological Survey Division,c1957]  a11 l.bmaps, diagrs. 0aGeologyzMichiganzHillsdale County.1 aMichigan.bGeological Survey Division.  c29236d29236