00339nam a2200121Ia 4500008004100000020001800041100001600059245004200075250001400117260004200131300001300173650003100186240817s9999    xx            000 0 und d  a9790000000000  aDebi, Aloka 0aEnvironmental science and engineering  a628 D35,e  c2012a Hyderabadb Universities Press  a252p. p.  a Environmental engineering