000			00273nam a22001217a 4500
999			_c155340 _d155340
082			_a _b
100			_aJ C Aggarwal
245			_aEducation research an introduction/ _cby J C Aggarwal.
260			_a _bArya Book, _c1991.
300			_a328p.
650			_a
942			_cBK