003740000a22001330004500060000800000082001500008100002000023100002400043245003800067260005100105260000900156300000800165650006700173  a100  a575.15 MET  aGregy, Thomas G  aMettler, Lawrence E  apopulation genetics and evolution  aNew Jersey, Prentice- Hall Inc englewoodchiffs  c1969  a212  aPopulation genetics/ evolution/ genes in demes/ genetics drift