Hargreaves, D. H., & Keddie, N. (1972). Sorting them out: Two essays on social differentiation. Social differentiation I: allocation and differentiation in schools. Open U.P..
Chicago-viite (17. p.)Hargreaves, David H., ja Nell Keddie. Sorting Them Out: Two Essays on Social Differentiation. Social Differentiation I: Allocation and Differentiation in Schools. Milton Keynes: Open U.P., 1972.
MLA-viite (8. p.)Hargreaves, David H., ja Nell Keddie. Sorting Them Out: Two Essays on Social Differentiation. Social Differentiation I: Allocation and Differentiation in Schools. Open U.P., 1972.
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