000			00309nam a2200133Ia 4500
008			220613s9999||||xx |||||||||||||| ||und||
100			_aDeobold B Van Dalen
245		0	_aUnderstanding Educational Research
250			_a3rd(1973)
260			_bMc Graw Hill
300			_a532
650			_aOther
942			_cGB
999			_c2721 _d2721