00381nam a2200169Ia 4500008004100000041001200041082000800053082001100061100001600072100001100088245002400099260001300123260002600136260000900162365002500171650001500196150909s9999    xx            000 0 und d  aEnglish  a519  bGUP/ST  aGupta S,P    eAuthor  aStatistical methods  aNewdelhi  bSultan chand and son   c1982  aRs.50                 aStatistics