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Calhoun, Craig and Ritzer, George (1992) A sociological approach to social problems. In: Calhoun, Craig and Ritzer, George, (eds.) Social Problems. McGraw-Hill Publishing Company, NY, USA. ISBN 9780071527460
Calhoun, Craig and Ritzer, George (1992) The study of social problems. In: Calhoun, Craig and Ritzer, George, (eds.) Social Problems. McGraw-Hill Publishing Company, NY, USA. ISBN 9780071527460