000 00221nam a22000977a 4500
082 _a575.1
_bHAY/GEN
100 _aHAYS,W
245 _aGENETICS OF BACTERIA & THEIR VIRUSES
260 _bBLACKMAIL SCIENTICE
942 _2ddc
_cBK
999 _c4083
_d4083