00348nam a2200109Ia 4500008004100000020001800041082002100059100001800080245009000098260003900188300001100227210430s9999    xx            000 0 und d  a81-239-1487-3  a660.2842 N2181 U  aC.M.Narayanan  aUnit Operations and Unit Processes Including Computer Programs volum 2cC.M.Narayanan  aNew DelhibSatish Kumar Jainc2007  a1788 p