000 00241 a2200097 4500
001 36703
100 _aWeisbecker H.Dr
245 _aThe calculus; problem solver
260 _aNew York
_bResearch & Edu Association
_c
090 _c23749
_d23749
942 _aNUST-CAE
_cM
_c15279
999 _c271776
_d271776