Stretton, Hugh, 1924- The political sciences : general principles of selection in social science and history / Hugh Stretton. - London : Routledge & K. Paul, 1969. - xii, 453 p. : ill. ; 23 cm. Bibliography: p. 435-439.and index. ISBN: 0710061773 Subjects--Topical Terms: political sciences. Dewey Class. No.: 320 / STP 1969