000 00345nam a2200133Ia 4500
008 230702s9999 xx 000 0 und d
020 _a9781544369464
082 _a510.712
_bSAN
100 _aSangiovanni, M.
245 0 _aProductive Math Struggle /
_cSangiovanni
260 _aChennai :
_bSage pub ,
_c2020
650 _aEducation
942 _cENG
999 _c45244
_d45244