00970cam a22002891  4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153043001200165050001500177100003800192245009500230260002400325300003700349410005000386500004900436504002800485650002700513650004000540650003800580700004500618999001700663gs 63000205 DLC20260227111412.0790425s1962    nduab    b   s000 0 eng c  ags 63000205   a(OCoLC)4893298  aU.S. Geol. Survey. Libr.cMnMohCdDLC  apremarc  an-us-nd00aQE149b.C31 aCarlson, C. G.q(Clarence Gustav)10aUpper Ordovician and Silurian rocks of North Dakota,cby C. G. Carlson and W. P. Eastwood.  aGrand Forks,c1962.  aii, 52 p.billus., maps.c23 cm.20aNorth Dakota Geological Survey.tBulletinv38  aPart of illustrative matter fold. in pocket.  aBibliography: p. 23-26. 0aGeologyzNorth Dakota. 0aGeology, StratigraphicyOrdovician. 0aGeology, StratigraphicySilurian.1 aEastwood, William Parker,ejoint author.  c29708d29708