00295nam a2200121Ia 4500082002100000100002000021245002300041260003500064300001900099490004500118500000500163700000500168  a519.52bSu943.AS  aSudman, Seymour  aApplied samplingb  aNew YorkbAcademic Pressc1976  ax, 249p. Index  aQuantitative studies in Social Relations  a  a