00426nam a2200157Ia 4500008004100000082001800041100001600059245002600075250000700101260003800108300000800146650003800154650003400192653002500226700001700251170901s1990    xx            000 0 und d  a620.112bJ20E  aJain, P. C. 0aEngineering Chemistry  a11  aDelhibDhanpat Rai and Sonsc1990  a848  aEngineering and allied operations  aTechnology (Applied sciences)  aChemical engineering  aJain, Monika