00446nam a2200157Ia 450000100060000000300040000600500170001000800410002704000110006804100080007908200160008710000220010324501220012570000220024770000190026920744Ost20260507155758.0251113s9999||||xx |||||||||||||| ||eng||  cnitttr  aeng  a621bM312M   aManchanda,  V. K. 0aMechanical estimating & costing (including production engineering) /cManchanda, V. K., Singla, D. R, Aggarwal, K. B.  a Aggarwal,  K. B.  a Singla,  D. R