00849nam0-22003131i-450 99000067367040332120190412111751.0000067367FED01000067367(Aleph)000067367FED0100006736720001010d1950----km-y0itay50------baengUSy-------001yyHuman ecologya theory of community structureAmos H. HawleyNew YorkThe Ronald press Co.copyr. 1950XVI, 456 p.ill.24 cmHawley,Amos H.34166ITUNINARICAUNIMARCBK99000067367040332101 ECOL 52153DINSTC 1295 CANs.i.DARPUDARPUDINSTHuman ecology325251UNINAING01