Rex, John. Key problems of sociological theory / by John Rex. - London : Routledge & Kegan Paul, c1961 [Impression 1963]. - ix, 194 p. ; 23 cm. - International library of sociology and social reconstruction (Routledge & Kegan Paul) . Includes bibliographical footnotes and index. Subjects--Topical Terms: Sociology. Dewey Class. No.: 301 / REK 1963