00300nam a22001097a 4500015000900000041000800009100003900017100003900056245002400095260006300119300000800182  a1369  aENG  cpoul R.Lshrlich R.W.Helm I.L.Brawn  apoul R.Lshrlich R.W.Helm I.L.Brawn  abiology ans society  aMC Graw Hill book companybMC Graw Hill book companyc1976  a564