Grayson-Smith, Hugh. The changing concepts of science / Hugh Grayson-Smith. - Englewood Cliffs, N.J. : Prentice-Hall, 1967. - xv, 624 p. : ill., (some col.) ; 24 cm. Includes bibliographical references (p.605-609). Subjects--Topical Terms: Science. Dewey Class. No.: 500