00298nam a2200121Ia 4500008004100000082001300041100002000054245001800074260004100092300001200133600001900145650001200164140224s9999    xx            000 0 und d  a577.4 M3  aOdum, Eugene P.  aBasic ecology  aPhiladelphiabSaunders Collegec1983  ax,613p.  aP. Eugene Odum  aEcology