000 00262nam a2200109Ia 4500
100 _aHassett, Joseph D. & Weisberg, Arline
942 _cBK
245 _aOpen education
260 _aPrentice Hall, New Jersey
_c1972
082 _a371.3 Has/Wei
300 _axviii, 141
999 _c8890
_d8890