Ulbricht, T. L. V. Purines, pyrimidines, and nucleotides, and the chemistry of nucleic acids, by T.L.V. Ulbricht. - Oxford : New York : Pergamon Press; Macmillan 1964. - vii, 79 p. : illus. 20 cm. Includes index. Subjects--Topical Terms: Nucleic acids. Dewey Class. No.: 547.596 / ULP 1964