000 00457nad a22001457a 4500
008 120525s1949 -us||||| |||| 00| 0 eng d
041 _aeng
100 1 _aBurla, Hans
245 1 4 _aThe willistoni group of sibling species of Drosophila /
_cH. Burla ... [et al.]
260 _a[S.l. :
_bs.n.],
_c1949
300 _a300-314 p. :
_bill. ;
_c25 cm
440 1 _aEvolution ;
_v3
760 _03937
_93937
_tGenetica Generale e invertebrata.
_w3937
942 _2ddc
_cPM
999 _c34185
_d34185