000			00534nam a2200205Ia 4500
005			20250619144916.0
008			250619s9999||||xx |||||||||||||| ||und||
020			_a0070668833 _c _13.95
040			_aMAIN
041			_aEnglish
082			_a370.1 _bDAL
100			_aDalen, Deobold B. Van
245		0	_aUnderstanding educational research _b: an introduction
250			_a4th ed.
260			_aNew York _b; Mcgraw-Hill _c, 1962
300			_axii,546p.
650			_aEducation
650			_aEducational Research
942			_cBK
999			_c115788 _d115788