Palen, J. J. (2001). Social problems for the twenty-first century. McGraw-Hill.
Chicago Style (17. basım) AtıfPalen, J. John. Social Problems for the Twenty-first Century. Boston: McGraw-Hill, 2001.
MLA (9th ed.) AtıfPalen, J. John. Social Problems for the Twenty-first Century. McGraw-Hill, 2001.
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