000 00350nam a2200145Ia 4500
020 _a0195846664
082 _b1121
_a380
100 _a"Betsy Li"
245 0 _aModern certificate guide: certificate commerce
260 _bOxford
_aNew York
_c1987
300 _a170
944 _cTR
999 _c529306
_d529306