Ray, George. F. 1915- The diffusion of mature technologies / George F. Ray. - Cambridge [Cambridgeshire] ; New York : Cambridge University Press, 1984. - ix, 96 p. : ill. ; 24 cm. - Occasional papers / the National Institute of Economic and Social Research ; 36 . Includes bibliographical references and index. ISBN: 0521260086 Subjects--Topical Terms: Technology transfer.Diffusion of innovations. Dewey Class. No.: 338.06 / RAD 1984