000 00288nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aWATSON (Jai ) Etc.,
245 0 _aCaste differentiation in social insects
260 _cPergamon Press
365 _b0
650 _aNIL
942 _cBK
999 _c94428
_d94428