000 00411nam a2200157Ia 4500
999 _c44749
_d44749
005 20220104155733.0
008 180712s9999 xx 000 0 und d
020 _a521201942
082 _a371.351
_bSCH
_223
245 _aTHE SCHOOL mathematics project
260 _aLondon
_bCambridge university press
_c1974
300 _ax, 276 p.
500 _aIncludes index.
650 _aDistance education
942 _cS