000 00334nam a2200145Ia 4500
020 _a0000000000000
082 _b538
_a380
100 _a"Li, Betsy"
245 0 _aCERTIFICATE COMMERCE
260 _bOXFORD PRESS
_aSingapore
_c1987
300 _a170
944 _cBK
999 _c393269
_d393269