Freifelder David DNA molecule structure and properties: original paers analysis and problems Freifelder David - San Francisco W H Freeman 1978 - x, 499p. cm. - Series of books in biology . Standard No.: 43435 Source: Textual Subjects--Topical Terms: Heterocyclic biochemistry Organic chemistryChemistry Dewey Class. No.: E9G,8,3N:2, L8