000 00244nam a2200097 4500
999 _c334414
_d334414
082 _a550
_bAHR.P
100 _aAhrens, L.H.
245 _aPhysics and Chemistry of the Earth, Vol. 2
_cAhrens, L.H.
260 _aLondon
_c1957
_bPergamon
942 _cBK