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005 20231212113701.0
008 220727b ||||| |||| 00| 0 eng d
082 _223
_a016.3705
_bEDU
245 _aEducation Documentation and information, vol.182-184, (1972)
260 _aFrance
_bCourvoisier S.A
_c1972
509 _aNS
650 4 _95375
_aEducation
650 4 _91457
_aBibliographies
942 _cPRBP