000 00270nam a22001217a 4500
999 _c39817
_d39817
003 OSt
100 _aStansfield, William D
245 _aTheory and Problems of Genetics
260 _aNew York
_bMcgraw Hill
_c1969
300 _a281p.
901 _a95RARE
942 _2ddc
_cBK