000			00255nam a2200097 4500
999			_c335339 _d335339
082			_a552.1 _bWAG.L
100			_aWager L.R. and Brown G.M.
245			_aLayered igneous rocks _cWager L.R. and Brown G.M.
260			_aLondon _c1968 _bOliver &Boyd
942			_cBK