000			00330nam a2200145Ia 4500
008			131111s9999 xx 000 0 und d
100			_aAidley,D.J
245			_aAnimal migration
260			_aLondon
260			_bCamridge University Press
260			_c1981
300			_a264p.
650			_aAnimal _aZoology
763			_a21316
999			_c31094 _d31094