00375nam a2200145Ia 4500008004100000020001500041082001600056100001600072245003100088260005400119300000800173650001800181650001800199653001200217170901s1997    xx            000 0 und d  a0706986768  a574.5bH27M  aKumar, H.D. 0aModern Concepts of Ecology  aNew DelhibVikas Publishing House Pvt. Ltd.c1997  a478  aLife sciences  aPure Sciences  aEcology