00421ca0 a2200157ua 450000500170000000800410001704000090005804100080006708200160007510000200009124500630011125000120017426000510018630000110023765000150024820220127142636.0070612s               g     b000 u eng u  aMAIN1 aeng14a519.52bYAT1 aYates, Frank  .10aSampling methods for censuses and surveys / cFrank Yates.  a2nd ed.  aLondon;bCharles grifin And Co Ltd , cc 1988.  a401 p. 0aStatistics