003380000a22001450004500650001800000650002800018082001800046530000600064100002300070245003900093260002500132260000900157041000800166300001800174  aProbabilities  aStatistical mathematics  a519.54bP442e  aM  aPetersen, Roger G.  aExercises in statistical inference  aUSAbOSV Book stores  c1975  aEng  avarious pages