000			00498nam a22001457a 4500
008			240909b |||||||| |||| 00| 0 eng d
040			_aNational Science Library _cNational Science Library
080			_aD 025.43:37 _bK9
245			_aThesaurus of eric descriptors _c/ Educational Resources Infromation Centre Bureau Of Research
250			_a2nd ed.
260			_aWashington: _bUS Department of Health, Education and Welfare, _c1969
300			_a289p.
650			_aThesaurus
942			_2udc _cREF
999			_c66476 _d66476