000 00303 a2200121 4500
080 _a576.12
_bD 635 E
245 1 _aEvolution
_cby T. Dobzhansky, et. al.
260 _aSan Francisco
_bW.H. Freeman and Co.
_c1977
650 _aEvolution
100 1 _aDobzhansky, T.
_d
300 _a572 p.
901 _a144013
999 _c71922
_d71922