000 003610000a22001450004500
060 _a100
082 _a575.1 SIN
100 _aSingleton, Ralph W
245 _aElementary genetics
260 _aNewyork, Van Nostrand Reinhold Co
260 _c1967
300 _a576
650 _aGenetics/gene-mutation/chromosome-mutation/mutation-genetics
942 _cBK
999 _c215340
_d215340