000			00349nam a2200133Ia 4500
008			210324s1989 xx 000 0 und d
082			_a552.5 _bCOL.THO
100			_aCollinson, J.D. _9381787
245			_aSedimentary stuctures.
260			_c1989
520			_aU.G.C. 8th plan.
650			_aNO SUBJECT _9381788
700			_aThompson, D.B. _9381789
999			_c294485 _d294485