000			00350nam a22001337a 4500
008			230726b |||||||| |||| 00| 0 eng d
041			_aEnglish
082			_a598.2
100			_aLorenz, Konrad
245			_aComparative studies on the behaviour of the anatinae
260			_aGermany _bJournal fur ornithologic _c1941
300			_a87p.
942			_cBK
999			_c93009 _d93009