000 00268nam a22000977a 4500
008 131221b xxu||||| |||| 00| 0 eng d
050 _a591.51
_bKER
100 _cKREBS R J
245 _aAN INTRODUCTION TO BEHAVIROUL ECOLOGY
260 _bBLACKWELL SCIENTIFIC PUBLICATIONS
999 _c328317
_d328317