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020 _a978-81-203-3921-7
082 _a530
082 _bGAR/E
100 _aSURESH
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100 _bC.KGHOSH
245 0 _aOSCILLATIONS AND WAVES
260 _aNEW DELHI
260 _bPHI LEARNING PVT LTD
260 _c2009
999 _c1719
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