000 00262nam a2200097 4500
082 _a553GP
_bAHR.P;1
100 _aAhrens, L.H. et.al.
245 _aPhysics and Chemistry of the Earth, Vol. 8
_cAhrens, L.H. et.al.
260 _aLondon
_c1971
_bPergamon
942 _cBK
999 _c335416
_d335416