00377nam a2200133Ia 4500008004100000082001800041100002000059245005500079260004900134300000800183650001800191650002400209653001000233170901s1974    xx            000 0 und d  a598.255bC47C  aCody, Martin L. 0aCompetition And The Structure of Birds Communities  aNew JerseybPrinceton University Pressc1974  a317  aPure Sciences  aZoological sciences  aBirds