00358nam a2200145Ia 4500003000500000008004100005020000900046040000900055041001200064082002300076100002400099245004900123260002800172650001200200NDCL180829s9999||||ii |||||||||||||| ||eng||  a2923  aNDCL  aEnglish  a591.5 KCB216th ed  aKnight, Clifford B. 0aBasic concept of ecologycClifford B. Knight  c1965bMacmillan Company  aZoology