00282nam a2200121 a 450000500170000002000150001708200150003210000160004724500230006326000390008630000170012563000180014220251203110119.0  a8170351715  a639.2bYAD  aYadav, B.N.  aFish and fisheries  aDelhibDaya Publishing Housec1997  a366 p.c22cm  aFish diseases