000			00251nam a2200097 4500
999			_c336467 _d336467
082			_a553.492 _bASW.P
100			_aAswathanarayana ,U.
245			_aPrinciples of nuclear geology _cAswathanarayana ,U.
260			_aNew Delhi _c1985 _bOxonian
942			_cBK