000 00519nam a2200205Ia 4500
008 180116s1991 xxu||||| |||| 00| 0 eng d
020 _a0809483033
082 _a030
_bTIM
100 _a Time-Life Books
245 _aMathematics and computers
_b
250 _a
260 _aHong Kong
_bTime-Life Books
_c1991
300 _a112p.
_b31cm.
440 _achildern's theasury of knowledge
_v
500 _a
520 _a Mathematics, Computer
650 _aComputer
650 _aMathematics
906 _a12900
_b
_c
999 _c29515
_d29515