000 00339nam a2200133Ia 4500
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040 _e92216
_aMAIN
041 _aEnglish
082 _a546.683 S46S
100 _aSukhvarsha
245 0 _aStudy of the ion-exchange behaviour of certain phospho silicates
300 _a179 p.
942 _cTH
999 _c87735
_d87735