00716nam a2200181 u 4500001001300000003000500013005001700018008004100035040001300076086002200089245009100111260008300202300001900285490005500304500008800359500004300447500004400490hsl000622292DGPO20190831113905.0080828s2007    xxu     r    f000 0 eng d  cGPOdMvI0 aI 19.76:2007-128500aDigital mapping techniques '06--workshop proceedings, June11--14, 2006 Columbus, Ohio.  aWashington, D.C. :bU.S. Dept. of the Interior, U.S. Geological Survey.c2007.  a217 p. :bbook0 aU.S. Geological Survey open-file reportv2007-1285  a"Association of American State Geologists and the United States Geological Survey."  a"Hosted by the Ohio Geologial Survey."  aCRDP Program Historic Shelflist record.