003900000a22001330004500060000800000082001900008100001900027245003800046250000600084260006600090260000900156300000800165650008300173  a100  a574.873 28 DAV  aDavidson, J.N.  aBiochemistry of the nucleic acids  a5  aGreat Britan, English Language Book Society, methuen & co Ltd  c1950  a352  aBiochemistry - nucleic acid/ chromatography/ ultra violet absorption/ RNA/ DNA