000 00300nam a2200133Ia 4500
008 160710s1992 xx 000 0 und d
020 _a0121821110
082 _a572.7 BRA
100 _aBRAND,L ED
245 _aMETHODS IN ENZYMOLOGY
260 _bACADEMIC
_c1992
300 _a718
942 _2ddc
_cB
999 _c61662
_d61662