00327nam a2200121Ia 4500008004100000040001500041041001200056082001700068100002400085245003600109260004900145300001100194230917s9999||||xx |||||||||||||| ||und||  e2120aMAIN  aEnglish  a551.12 C284V  aCathles, Lawrence M 0aViscosity of the earth's mantle  aNew JerseybPrinceton University Pressc1975  a386 p.