@article{Sibley, author = {Sibley, E.}, title = {Some Demographic Clues to Stratification}, series = {L. Wilson and W.L. Kolb (Eds.), Sociological Analysis. An Introductory Text and Case Book, New York (Harcourt, Brace and Co.) 1949, pp. 642-650.}, journal = {L. Wilson and W.L. Kolb (Eds.), Sociological Analysis. An Introductory Text and Case Book, New York (Harcourt, Brace and Co.) 1949, pp. 642-650.}, language = {en} }