000 00294nam a2200097 4500
245 _aUnderstanding elementry calulvus : principles, problems abd solutions
_cCharles Godino
100 _aGodino, Charles
260 _aNew York
_bW. A. Benjamin
_c1969
300 _axii,339p.; 23cm.
082 _a515
_bGOD
999 _c23833
_d23833