Hargreaves, D. H. (1972). Sorting them out: Two essays on social differentiation. Open U.P..
芝加哥风格引文Hargreaves, David Harold. Sorting Them Out: Two Essays on Social Differentiation. Bletchley: Open U.P., 1972.
MLA引文Hargreaves, David Harold. Sorting Them Out: Two Essays on Social Differentiation. Open U.P., 1972.
警告：这些引文格式不一定是100％准确.