000 00520nam a2200169Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a371.26
_bRb-71-16
100 _aLord F M
245 _aEfficiency of estimation when there is only one common fa02or
260 _aNew Jersey
_bETS
_c1971
440 _aEducational Testing Service. Princeton : Research bulletin; 16
650 _aEducational tests and measurements
700 _aWingersky M S
_4Auth.
942 _cBK
999 _c93062
_d93062