KERBO, H. R. (2003). Social stratification and inequality: Class conflict in historical, comparative,and global perspective.-- ed.5. McGraw-Hill.

KERBO, Harold R. Social Stratification and Inequality: Class Conflict in Historical, Comparative,and Global Perspective.-- Ed.5. Boston: McGraw-Hill, 2003.

KERBO, Harold R. Social Stratification and Inequality: Class Conflict in Historical, Comparative,and Global Perspective.-- Ed.5. McGraw-Hill, 2003.