00397nam a2200157Ia 4500008004100000020001800041082001600059100001700075245003100092250000600123260005400129300000800183650001800191650001800209653001200227170901s1995    xx            000 0 und d  a9780706986761  a574.5bK98M  aKumar, H. D. 0aModern Concepts of Ecology  a8  aNew DelhibVikas Publishing House Pvt. Ltd.c1995  a478  aLife sciences  aPure Sciences  aEcology