000 00339nam a2200157Ia 4500
020 _a0809487586
040 _cPK-LaCSN
082 _b751
_a510
100 _a"Time Life"
245 0 _aWhat Are Numbers? :
_b0-5
260 _c1994
300 _a55
942 _2ddc
_cBK
999 _c640596
_d640596