APA (7th ed.) Citation

Rex, J. (1980). Key problems of sociological theory. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Rex, John. Key Problems of Sociological Theory. London; Henley: Routledge and Kegan Paul, 1980.

MLA (9th ed.) Citation

Rex, John. Key Problems of Sociological Theory. Routledge and Kegan Paul, 1980.