00289nam a2200109Ia 450000500170000000800410001708200140005810000190007224500400009126000400013130000080017120260224041014.0260224s9999||||xx |||||||||||||| ||und||  a311.2 JOH  aJohnson, R.A.  0aStatistics : principles and methods  aNew York: John Wiley & Sons. c1987  a758