000 00306nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a521097282
082 _a510.712SCO
100 _aScopes P G
245 0 _aMarhematics in Secondary School
260 _bCambridge University Press
_c1973
942 _cBK
999 _c438361
_d438361