000			00310nam a2200133Ia 4500
008			160316s1984 xxu||||| |||| 00| 0 eng d
020			_a
100			_aKrebs,J R,Ed
245			_aBehavioural Ecology
250			_a
260			_aLONDON _bBLACKWELL SCIENTIFIC PUBLICATIONS _c1984
300			_a493
700			_a _a
999			_c19790 _d19790