000			00350nam a2200145Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a226144100
041			_aen
082			_a591.51
100			_aDEWSBURY, Donald A
245		0	_aStuding Animal Behaviour
260			_aChicago. _bThe Uni.of Chicago Press _c1989
300			_a512p.
942			_cPR
999			_c42547 _d42547