Social stratification - Abrams, Mark; Jackson, John Archer; Allardt, Erik; Broom, Leonard; Eisenstadt, Shamuel Noah 1923-; Furstenberg, Friedrich; Lancaster Jones, F.; Runciman, Walter Garrison 1934-; Shils, Edward Albert 1910-1995; Slomczynski, Kazimierz; Wesolowski, Wlodzimierz; Zubrzycki, Jerzy (Cambridge : Cambridge University Press, 1968)
Parte de la mención de responsabilidad tomada de páginas preliminares