000 00304 a2200133 4500
080 _a576.12
_bR 421 E
245 1 _aEvolution above the species level
_cby B. Rensch
260 _aLondon
_c1959
650 _aEvolution
650 _aSpecies
100 1 _aRensch, B.
_d
300 _a419 p.
901 _a75230
999 _c32710
_d32710