000 00318nam a2200133Ia 4500
008 160930s9999 xx 000 0 und d
020 _a9788120335639
100 _aBest, John W
245 _aResearch in Education
250 _a10
260 _aNew Delhi
_bPHI Learning
_c2011
300 _axii,510p.;24cm
942 _cBK
999 _c5792
_d5792