000 00289nam a2200097Ia 4500
100 _aColowick S P & Kaplan N O
245 _aMethods in Enzymology Vol 20 Nucleic Acids & Protein Synthesis Part C
260 _bAcademic Press, New York
082 _aN55.20/B15196
300 _app 586; 23*15
999 _c32048
_d32048