00297nam a2200121 a 450000500170000002000150001708200150003210000060004711000190005324500390007226000390011130000250015020251203110507.0  a8170353122  a577.7bAQU  d_  aKumar, Aravind  aAquatic Environment and Toxicology  aDelhibDaya Publishing Housec2003  axii,431p.c24 cm. HB