000 00311nam a2200121 a 4500
005 20140414132113.0
008 110817s19uu xx 00 eng d
050 _aREF 503
_bA3 1990
245 _aThe age of computers.
260 _aSingapore :
_bWorl book,
_c1990.
440 _aYoung Scientist
999 _c114837
_d114837