@base .
a ;
.
a , ;
"Report of investigation - Geological Survey (Lansing)" .
a .
"Michigan" .
a ;
"0543-8497" ;
.
a , , ;
, , ;
"Report of investigation - Geological Survey Division." ;
;
;
"0543-8497" ;
;
"0543-8497" ;
;
"0543-8497" ;
"Report of investigation - Geological Survey (Lansing)" , "Report of investigation - Geological Survey Division." ;
.
a ;
;
"20050914132200.0"^^ ;
;
.
.
a ;
"0543-8497" ;
.