000 00289nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _a510
100 _aVishwa nath
245 0 _aEngeering mathematics
260 _bKarol bagh:59/26 satya prakashan
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300 _a592
942 _2ddc
999 _c78821
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