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999 _c63446
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008 190703s9999 xx 000 0 und d
082 _a744.422 V522E
100 _aVERMA,C.L.
245 0 _aENGINEERING DRAWING
260 _aDELHI
_bKHANNA
_c1977
300 _ap.245
650 _aENGINEERING GEOMETRY
650 _aDEVELOPMENT OF SURFACES
942 _cSW