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020 _c250
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040 _aARHU
082 _a530.124 PUB G
100 _aGPH Panel of Experts
_98854
245 0 _aOscillation and waves
260 _bGully Baba Publications
_aNew Delhi
300 _a230p.
500 _a59208
942 _cBK
999 _c65171
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