000 00336nam a2200133Ia 4500
008 140317s9999 xx 000 0 und d
082 _a591.51
100 _aCrook,J.H.
245 _aSocial behaviour in birds and mammals.
260 _aLondon
_bWhitefraiars Press
_c1970
300 _a492
650 _aZoological Sci.
942 _2ddc
_cBK
999 _c5034
_d5034