00496nam a2200181 a 450000500170000002000180001708200150003510000190005024500350006926000590010430000250016350000440018860000080023263000300024063000320027085600060030285600060030820251219155924.0  a9788183292610  a628.5bSIN  aSingh, M.P.d_  aEnvironmental biotechnologyb_  aNew DelhibShree Pubishers & Distributersc2008- R2022  av, 256p.c24 cm.bHB  aincludes bibligraphy details  and index  bc_  aEnvironmental Engineering  aEnvironmental biotechnology  f_  a_