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003 NUST - PNEC
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020 _a0408015543
040 _cLIBRARY
082 _a620.3 PRE
100 _97725
_aPertlove A. J.
245 _aBasic mechanical viberations
_cA. J. Pertlove
260 _cc.1985
650 _97729
_bMechanical Engineering
_xME
942 _2ddc
_cBK
999 _c65597
_d65597