000 00516nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a371.26 PID
100 _aPidgeon , Douglas
245 _aIntroduction to educational measurement
260 _bRoutledge & Kegan Paul
_aLondon
_c1968
999 _c151002
_d151002