Barber, B. (1957). Social stratification: A comparative analysis of structure and process. Harcourt.
Lua i Stíl Chicago (17ú heag.)Barber, Bernard. Social Stratification: A Comparative Analysis of Structure and Process. New York: Harcourt, 1957.
Lua MLA (9ú heag.)Barber, Bernard. Social Stratification: A Comparative Analysis of Structure and Process. Harcourt, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.