00423nam a2200157Ia 4500008004100000082001600041100002100057245004400078260004900122300000800171650001800179650001800197653001200215653001200227700002600239170901s1958    xx            000 0 und d  a574.5bB47P  aBenton, Allen H. 0aPrinciples of Field Biology and Ecology  aNew YorkbMcgraw Hill Book Company Incc1958  a341  aLife sciences  aPure Sciences  aBiology  aEcology  aWerner Jr, William E.