000 00307nam a2200109Ia 4500
001 21531
008 170722s9999 xx 000 0 und d
100 _aBeddall, Barbara G.
245 _aWallace and Bates in the tropics
_bAn introduction to the theory of natural selection /
260 _c1969.
942 _cGEN
999 _c74396
_d74396