00289nam a2200097 a 450000500170000008200150001710000210003224500840005326000260013730000280016320251203090508.0  a577.8bSOU  aSouthwood, T.R.E  aEcological methodsbwith particular reference to the study of insect population  aNew DelhibELBSc1978  axxiii,524p.c23 cm.bHB