00438nam a2200169Ia 4500008004100000020001500041082001800056100002000074245003800094250000600132260003500138300000800173650003400181650001800215653001700233653001800250170901s1972 xx 000 0 und d a0412210304 a547.596bD20B aDavidson, J. N. 0aBiochemistry of the Nucleic Acids a7 aLondonbChapman and Hallc1972 a396 aChemistry and allied sciences aPure Sciences aBiochemistry aNucleic acids