000 00319nam a2200133Ia 4500
008 160710s1983 xx 000 0 und d
020 _a0121820009
082 _a572.7 WU REF
100 _aWEC,R ED.
245 _aMETHODS IN ENZYMOLOGY: RECOMBINANT DNA
260 _bACADEMIC
_c1983
300 _a540
942 _2ddc
_cB
999 _c61474
_d61474