000 003720000a22001570004500
060 _a100
082 _a575.1 SIN
100 _aSingleton, Ralph W
245 _aElementary genetics
250 _a2
260 _aNewyork, Van nostrand reinhold co.
260 _c1967
300 _a576
650 _aGenetics/gene-mutation/chromosomes/mutation-genetics
942 _cBK
999 _c215366
_d215366