000 00307nam a2200133Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a621.8
100 _aAGARWAL,D.D. Mittal N.K
245 0 _aMachine drawing
260 _bNew Delhi. Vikas Pub
_c1979
300 _a(1),140p.
942 _cLL
999 _c1490
_d1490