000			00526nam a2200205Ia 4500
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020			_a0070668833 _c _13.95
040			_aMAIN
041			_aEnglish
082			_a370.1 _bDAL
100			_aDalen, Deobold B. Van
245			_aUnderstanding educational research _ban introduction
250			_a4th ed.
260			_aNew York _bMcgraw-Hill _c1962
300			_axii,546p.
650			_aEducation
650			_aEducational Research
942			_cBK
999			_c42606 _d42606