Davidson, James Norman. The biochemistry of the nucleic acids / J. N. Davidson. - 6th ed. - London : Wiley, [1969] - xvi, 351 p. : ill. ; 22 cm. - Methuen's monographs on biochemical subjects. . Includes bibliographical references. Subjects--Topical Terms: Nucleic acids. Dewey Class. No.: 574.192