000 00271nam a2200109Ia 4500
999 _c2891
_d2891
100 _aWilbur L Beauchamp
245 _aScience Problems
260 _aChicago
_bScott, Foresman and Company
_c1939
300 _ax+756
700 _aJohn C Mayfield
_aJoe Young West
942 _cREF