00354    a2200133   4500020001500000082001500015100002100030245003900051260004900090300002200139650002300161650001200184700002400196  a8185375348  a577.6bMUN  aMunshi, J. Datta  aFundamentals of freshwater biology  aDelhibNarendra publishing housec1995g1995  axviii,222p.c25cm  aFreshwater ecology  aEcology  aMunshi, J. S. Datta