Kerbo, H. R. (1996). Social stratification and inequality: Class conflict in historical and comparative perspective (3rd.ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Kerbo, Harold R. Social Stratification and Inequality: Class Conflict in Historical and Comparative Perspective. 3rd.ed. Boston: McGraw-Hill, 1996.
Lua MLA (9ú heag.)Kerbo, Harold R. Social Stratification and Inequality: Class Conflict in Historical and Comparative Perspective. 3rd.ed. McGraw-Hill, 1996.
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