000 003680000a22001570004500
060 _a100
082 _a575.1 SIN
100 _aSingleton, Ralph W
245 _aElementary genetics
250 _a2
260 _aLondon, Van Nostrand Reinhold Co
260 _c1962
300 _a576
650 _aGenetics/ Chromosomes/ Microbiology/ Cell division
942 _cBK
999 _c361660
_d361660