00839cam a22002651 4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153043001200165050001500177082001100192100002900203245005400232260002400286300003700310410005000347500010700397504002500504650002700529999001700556gs 52000264 DLC20260227111359.0790424s1952 ndub b s000 0 eng c ags 52000264  a(OCoLC)4888875 aU.S. Geol. Survey. Libr.cMnMohCdDLC apremarc an-us-nd00aQE149b.T6 a557.841 aTowse, Donald Frederick.10aSubsurface geology of south-central North Dakota. aGrand Forks,c1952. a23 p.b2 maps, 2 diagrs.c23 cm.20aNorth Dakota Geological Survey.tBulletinv27 a"Reprinted in part from Proceedings of the North Dakota Academy of Science, vol. VI, pp. 26-34, 1952." aBibliography: p. 11. 0aGeologyzNorth Dakota. c28681d28681