003550000a22001450004500060000800000082001600008100001500024100001600039100001700055245005700072260002900129260000900158300000800167650003400175  a100  a595.705 CLA  aClark, L R  aGeier,  P W  aHughes,  R D  aEcology of insect populations in theory and practice  aLondon, Methuen & Co Ltd  c1967  a227  aEntomology/  Insects- Ecology