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040 _aLC
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050 _aQC795.8
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100 _aChepngetich Betty
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245 _aINVESTIGATION OF NATURAL RADIOACTIVITY LEVELS IN CONSTRUCTION ROCKS FROM SELECTED QUARRIES IN KERICHO COUNTY,KENYA USING GAMMA-RAY SPECTROMETRY
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260 _aKENYA
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300 _axiii;84pg
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999 _c11283
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