002980000a22001210004500060000800000082001400008100002300022245004200045260004400087260000900131300000800140650002800148  a100  a519.5 WAM  aWampold,  Brauce E  aTheory and application of satatistics  aNewyork, Mc Graw- Hill Book Company Inc  c1990  a511  aMathematical statistics