00431nam a2200157Ia 4500008004100000020001500041082001800056100001600074245004500090260004400135300000800179650003400187650001800221653001800239700001600257170901s1972    xx            000 0 und d  a0471038466  a547.596bA95T  aAyad, S. R. 0aTechniques of Nucleic Acid Fractionation  aLondonbJohn Wiley and Sons, Inc.c1972  a234  aChemistry and allied sciences  aPure Sciences  aNucleic acids  aBlamire, J.