Tumin, M. (1967). Social stratification: The forms and functions of inequality. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Tumin, Melvin. Social Stratification: The Forms and Functions of Inequality. Englewood Cliffs, New Jersey: Prentice-Hall, 1967.
Lua MLA (8ú heag.)Tumin, Melvin. Social Stratification: The Forms and Functions of Inequality. Prentice-Hall, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.