000 00268nam a2200133Ia 4500
654 _aREF
100 _aYeole.C.M.
250 _a1st Ed.
245 _aEducational Technology.
260 _bSELF
_c1991
082 _bYEO
_a370
300 _a130p.
999 _c16182
_d16182
300 _c22 cm.
041 _aeng
546 _aText in English