00590    a2200181   4500001000700000003000400007005001700011008004100028082001400069100001900083245004800102260003400150300001000184690008100194942001200275999001300287952010800300066881OSt20211021154605.0                                          a628bS86E1 aSrinivasan, D.1 aEnvironmental engineeringcby D. Srinivasan  aNew DelhibPHI Learningc2009  a422p.  aEnvironmental engineering; Environmental protection; Factory and trade waste  2ddccBK  c876d876  00102ddc40708TXBaCURAJbCURAJd2012-03-07eECOg325.00o628 S86Ep1167r2024-11-21w2020-09-02yBK