00521nam a2200169Ia 4500 170901s1975 xx 000 0 und d 660.282 J20E Jain, Nandlal Engineering Padartho ka Rasayan Chemistry of Engineering Materials Bhopal Madhya Pradesh Hindi Grandh Academy 1975 416 Chemical and Related Technologies Technology (Applied sciences) Chemical engineering Materials ddc BK 18706 18706 0 0 ddc 0 0 RAU RAU 2017-10-18 V.H.G.A., Patna 14.00 0 660.282 J20E 44457 2017-10-18 1994-01-15 BK