000			00311nam a22001337a 4500
003			OSt
008			231219b |||||||| |||| 00| 0 eng d
082			_a575.1 _bO31P
100			_aOld, R. W.
245			_aPrinciples of gene manipulation
260			_aOxford _bBlackwell _c1981
300			_a214
942			_2ddc _cBK
999			_c34872 _d34872