000			00261nam a2200097 4500
999			_c335449 _d335449
082			_a553 GP _bROB.N
100			_aRobertson, Eugence C.et. al.
245			_a Nature of the Solid Earth _cRobertson, Eugence C.et. al.
260			_aCambridge _c1970 _bHUP
942			_cBK